Mnemonic

Mnemonic (pronounced ni-mon-ik)

(1) Something assisting or intended to assist the memory.

(2) Pertaining to mnemonics or to memory.

(3) In computing, truncated code thought easy to remember (eg STO for store).

1660–1670: From the New Latin mnemonicus from the Ancient Greek μνημονικός (mnēmonikós) (of memory) derived from μνήμων (mnḗmōn) (remembering, mindful) & μνᾶσθαι (mnâsthai) (to remember); the ultimate root was the primitive Indo-European men (to think).  The meaning "aiding the memory", a back-formation from mnemonics dates from 1753, the noun meaning "mnemonic device" is from 1858.  The use in computer programming emerged in the early days of code and was a space-saving (eg del rather than delete) tool as well.  Mnemonical was the original form from the 1660s.  One of the charming ironies of mnemonic is it is one of those words so many can't quite remember how to spell.  It's thus in a sense "antimnemonic" and a contronym (also as auto-antonym, antagonym, or enantiodrome) which describes a word with two opposite or contradictory meanings, depending on context.  Mnemonic is a noun & adjective, mnemonician, mnemonicalist, mnemotechnist & mnemonicon are nouns, mnemonize & mnemonized are verbs, mnemonical & mnemotechnic are adjectives and mnemonically & mnemotechnically are adverbs; the noun plural is mnemonics.

Sans Forgetica

Sans Forgetica sample text.

Recently released, Sans Forgetica (which translates as "without forgetting") is a sans-serif font developed by RMIT University in Melbourne.  Back-slanted and with gaps in the character constructions, it’s designed explicitly to assist readers better to understand and retain in their memory what they’ve read.  Perhaps counter-intuitively for those outside the field, the shape is intended to reduce legibility, thereby (1) lengthening the tame taken to read the text and (2) adding complexity to learning and absorbing what’s been read.  Together, they create what in cognitive psychology and neuroscience is called "desirable difficulty", in this case forcing (RMIT might prefer "nudging") people to concentrate.

The first three paragraphs of Lindsay Lohan's Wikipedia page, rendered in Sans Forgetica.  Sans was from the Middle English saunz & sans, from the Old French sans, senz & sens, from the Latin sine (without) conflated with absēns (absent, remote).   Forgetica was an opportunistic coining, the construct being forget + -ica.  Forget was from the Middle English forgeten, forgiten, foryeten & forȝiten, from the Old English forġietan (to forget) (which was influenced by the Old Norse geta (to get; to guess), from the Proto-West Germanic fragetan (to give up, forget).  The -ica suffix was from the Latin -ica, the neuter plural of -icus (belonging to derived from; of or pertaining to; connected with).

From usually a young age, readers become skilled at scanning text, a process helped by most publishers seeking to render their works as legible as possible.  The theory of desirable difficulty is that omitting parts of the font requires the reader to pause and process information more slowly, thus provoking an additional cognitive processing which may enhance both understanding and retention.  While the application of the science to a font is novel, there’s nothing original about Sans Forgetica as a piece of typography, it being described as a hybrid of several existing schools and within the theory, on the basis of a small-group sample of students, it’s claimed to be a balance between legibility and difficulty.  According to the documents supplied by the developer, it’s not been tested as a device for advertisers to draw people to their text, the theory of that being people scan and dismiss (without retention) the great bulk of the large, static signage which is a feature of just about every urban environment.  With Sans Forgetica, because it can’t as quickly be scanned, people will tend longer to linger and so more carefully read the whole; a memorable event itself.

The most recent revision (DSM-5-TR (2022)) to the American Psychiatric Association's (APA) Diagnostic and Statistical Manual of Mental Disorders (DSM) followed DSM-5 (2013) in refining the somewhat vague section on amnesia in both the DSM-IV (1994) & DSM-IV-TR (2000) where appeared the terms “Psychogenic amnesia” & “dissociative amnesia”, the core element of which was: “one or more episodes of inability to recall important personal information, usually of a traumatic or stressful nature, that is too extensive to be explained by ordinary forgetfulness.”  That really reflected the popular understanding and there was no clear definition of sub-types in the diagnostic criteria although in the text (not always in criteria) there was mention of localized, selective or generalized forms.  In the fifth edition, the disorder was called Dissociative Amnesia (psychogenic amnesia seems to have been replaced) and it was listed in the dissociative disorders section.  The definition still includes an “inability to recall important autobiographical information, usually of a traumatic or stressful nature, that is inconsistent with ordinary forgetting” so the popular understanding remains acknowledged but sub-types are now listed: localized (for specific event(s)), selective (some parts of the event), or generalized (identity and life history) amnesia.  Consistent with the structural revisions elsewhere in the fifth edition, the exclusion criteria was made more explicit (ie the memory loss should not be due to substances, medication, a neurological condition or better accounted for by another mental disorder) although clinician remain aware of overlap.  Significantly the DSM-5 did clarify that amnesia is retrograde (loss of pre-existing memories), especially of autobiographical kind and emphasised the memory loss is “beyond what is expected from normal forgetting.”  Because in such matters, there will be so much variation between patients, it remains one of those conditions with fuzzy boundaries and the symptoms presented must be assessed on a case-by-case basis.

Amnesia (memory loss) is much studied and although associated with the aging process, traumatic events (brain injury or psychological impacts) and certain neurological conditions, there have been some celebrated cases of recovery without medical intervention.  One celebrated case was that of Rudolf Hess (1894–1987; Nazi Deputy Führer 1933-1941) who in 1941 (on the eve of Germany invading the USSR) flew himself to Scotland in a bizarre and unauthorized attempt to negotiate a peace deal with those in the UK he though would be "reasonable men".    His "offer" was rejected and he was locked up (including two weeks in the Tower of London), later to be sent as a defendant before the IMT (International Military Tribunal) in the first Nuremberg Trial (1945-1946).  There, so convincing were his symptoms of amnesia and other mental states the judges requested submissions from defence and prosecution counsel on the matter of his fitness to stand trial.  The prosecutors assured the bench Hess would be able to both understand and cope with the proceedings and that an imperfect memory was merely a hindrance to his defence rather than an insuperable obstacle.  This was of course a predictable argument and the judges acceded to the defence’s request for a thorough medical investigation although they declined the suggestion Swiss doctors be consulted, assembling instead a team from medical staff on hand (three Soviet, three American, three British and one French), all from the nations running the trial.  The physicians presented four national papers which broadly were in agreement: Hess was sane (as legally defined) but was suffering from hysterical amnesia, induced by his need to escape from uncomfortable realities, something they found was often typical of “those with Hess’s unstable personality”.  All concluded the amnesia was temporary and would vary in intensity, the US doctors suggesting it may even disappear were any threat of punishment removed.

Caricature of Rudolf Hess at the first Nuremberg Trial by New Zealand-born UK cartoonist David Low (1891-1963).

The author Rebecca West (1892–1983) covered the trial as a journalist and wrote some vivid thumbnail sketches, noting of Hess: “Hess was noticeable because he was so plainly mad: so plainly mad that it seemed shameful that he should be tried.  His skin was ashen and he had that odd faculty, peculiar to lunatics, of falling into strained positions which no normal person could maintain for more than a few minutes, and staying fixed in contortion for hours. He had the classless air characteristic of asylum inmates; evidently his distracted personality had torn up all clues to his past.  He looked as if his mind had no surface, as if every part of it had been blasted away except the depth where the nightmares live.”  Whether or not Hess was "mad" (as such folk were described in 1946) can be debated but to many at the time, he certainly looked a madman.

Predictably unconvinced, Hess’s counsel at a hearing on 30 November 1945 told the bench a defendant could hardly stage an adequate defence if unable to remember names or incidents vital to his case, adding that on the basis of discussions with his client, even if he understood the words, Hess was incapable of grasping the significance of the charges against him.  Nor would a trial in absentia be fair because it would constituent a “grave injustice” were a defendant not present to give evidence or challenge the testimony of witnesses.  He concluded by requesting proceedings against him should be suspended and resumed only if his condition significantly improved.  To that, the British countered with a lengthy lecture on the distinctions in English law between amnesia & insanity and seconded the Soviet view that participation in the trial (and thus the need to make a defence) might well cure his condition.  Essentially, the British argued if he could follow the proceedings, he was fit to stand trial.  The US team noted Hess had at times claimed to be suffering amnesia while in captivity in England between 1941-1945 and on other occasions admitted the condition was simulated.  In the slang of the English criminal bar: “He had a bit of previous”.  The Americans also expressed annoyance at him having repeatedly refused any of the treatment prescribed by the Allied doctors, concluding: “He is in the volunteer class with his amnesia”.  The lawyers having finished, the IMT asked Hess if he wished to speak on the matter.  Without delay, he rose in the dock and walked to the microphone where he addressed the court in a clear and calm voice, his statement coherent, unambiguous and, most historians have concluded, clearly premeditated: “Henceforth my memory will again respond to the outside world.  The reasons for simulating loss of memory were of a tactical nature.  Only my ability to concentrate is, in fact, somewhat reduced.  But my capacity to follow the trial, to defend myself, to put questions to witnesses, or to answer questions myself is not affected thereby.  I also simulated loss of memory in consultations with my officially appointed defence counsel. He has therefore represented in good faith.”

He then sat down in what was described as a “stunned courtroom”.  It was at that point the trial’s most sensational moment and after taking a few seconds to digest things, the assembled press pack in their dozens rushed outside to file the story (the US military newspaper Stars and Stripes ran the punchy headline “Hess Nuts. Fake Story Fake”).  Immediately, the president of the IMT adjourned the session and the judges went into private session to decide whether Hess should be tried.  From their subsequent interviews and writings it appears they were not much influenced by Hess’s unexpected statement but were impressed by the similarity of the conclusions offered by the doctors, the chief US prosecutor saying such “unanimity of medical opinion” was, in his experience: “historically unique”.  All eight judges agreed Hess was fit to stand trial and, after being convicted on two counts ((1) conspiracy to wage aggressive war and (2) waging aggressive war), he was handed a life sentence and would remain incarcerated until in 1987 he committed suicide after some 46 years behind bars, the last two decades of which were served as the sole inmate (guarded by dozens of soldiers on rotation from France, the UK, US and USSR) of Berlin’s sprawling Spandau Prison, a huge facility designed to incarcerate hundreds.

Low’s take on the official German line explaining Hess deserting the German government as “madness”.  This cartoon does represent what was then the prevailing public perception of the typical appearance expected of those in “lunatic asylums”.  Depicted (left to right) are:

Hermann Göring (1893–1946; leading Nazi 1922-1945, Hitler's designated successor & Reichsmarschall 1940-1945): Committed suicide by by crushing between his teeth an ampule of a potassium cyanide (KCN), smuggled into his cell in circumstances never confirmed, shortly before he was to be hanged after being convicted on all four counts ((1) Conspiracy to wage aggressive war; (2) Waging aggressive war; (3) War crimes and (4) Crimes against humanity.

Adolf Hitler (1889-1945; Führer (leader) and German head of government 1933-1945 & head of state 1934-1945): With his wife Eva (née Braun; 1912–1945) of a few hours, committed suicide (he by gunshot and KCN, she by KCN alone) with the tanks of the Red Army only a couple of blocks from the Berlin Führerbunker.

Dr Robert Ley (1890–1945; head of the Deutsche Arbeitsfront (German Labour Front) 1933-1945): Before the trial began, he committed suicide by hanging (by means of suffocation) himself from the toilet-pipe in his cell in Nuremberg, after having for some years made a reasonable attempt to drink himself to death.  He died with his underpants stuffed in his mouth, decades before the phrase "Eat my shorts!" began to circulate in popular culture.

Joachim von Ribbentrop (1893–1946; Nazi foreign minister 1938-1945): Hanged at Nuremberg after being convicted on all four counts.

Dr Joseph Goebbels: With his wife (Magda Goebbels (née Ritschel; 1901-1945), committed suicide (by gunshot) in the courtyard above the Führerbunker, shortly after they’d murdered their six young children.

Heinrich Himmler (1900–1945; Reichsführer SS 1929-1945): Captured by the British while attempting to escape disguised as a soldier, he committed suicide using an ampule of KCN concealed in his mouth.

Whether Hess was at any point insane (in the legal or medical sense) remains debated although, as is often the case, more interesting still is the speculation about just when the instability began.  Whether any credence can be attached to the official statement on the matter from the Nazi Party is doubtful but in the view of Reich Chancellery, his madness predated his flight to Scotland in 1941 (one of the strangest incidents of World War II (1939-1945)).  What the German press was told to publish was that Hess had become "deluded and deranged", his mental health affected by injuries sustained during World War I (1914-1918) and that he'd fallen under the influence of astrologers.  Just to make that sound convincing, the police conducted a crackdown (a well oiled technique in the Nazi state) on soothsayers and fortune-tellers.  Dr Joseph Goebbels (1897-1975; Nazi propaganda minister 1933-1945) wasn't consulted before the "madness" explanation was announced and he seems to have been the only senior figure in the regime to grasp the potential implications of revealing to the public that for some time the country's deputy leader had been mad.  Others though did make the connection.  When Hermann Göring tried to shift the blame to aircraft designer and manufacturer Willy Messerschmitt (1898–1978) because he'd provided Hess a twin-engined Bf 110 Zerstörer (destroyer (heavy fighter)) for his flight, the engineer responded by saying Göring was more culpable because he should have done something about having someone unstable serving as Deputy Führer.  Göring could only laugh and told Messerschmitt to go back to building warplanes and, as it turned out, the strange affair was but a "nine day wonder" for not only did the British make no attempt to use Hess's arrival on their soil for propaganda purposes (which astonished Goebbels) but other events would soon dominate the headlines.  The only place where the strange flight left a great impression was in the Kremlin where comrade Stalin (1878-1953; Soviet leader 1924-1953) for years mulled over who within the British establishment might have conspired with Hess to allow the UK to withdraw from the conflict, leaving Germany able to invade Russia without having to fight on two fronts.  Historians have concluded the reluctance by the British to use for propaganda the arrival of Hess was their concern comrade Stalin might suspect collusion. 

Arthur Sinodinos, b 1957; Liberal Party functionary and minister variously 2007-2019; Australian ambassador to the US 2019-2023, right ) presenting to Donald Trump (b 1946; US president 2017-2021 and since 2025, left) his credentials as Australia's ambassador to the US, the White House, Washington DC, February 2020.

Less dramatic but perhaps medically even more remarkable than the Hess affair was the recovery from amnesia by Arthur Sinodinos, a case which deserves to enter the annals of academic psychiatry & neurology (and debatably, those of the thespians).  In Australia, royal commissions are public investigations, established by but independent of government.  Not a court, royal commissions are created to enquire into matters of public importance and, within their terms of reference, have broad powers to conduct public & in camera hearings; they can call witnesses, compelling them (under oath) to provide testimony and they deliver recommendations to government about what should be done, consequent upon their findings.  These can include recommendations for legislative or administrative changes and the prosecution of institutions or individuals and they’re of great interest because they appear to be the only institution (at least theoretically) able to compel a politician to tell the truth.  Even that power is limited though because when appearing before royal commissions, politicians seem especially prone to suffering amnesia, an obviously distressing condition which compels them frequently to utter phrases like “I can’t remember”, “I don’t recall”, “not in my recollection” etc.  In the lore of the New South Wales (NSW) bar, Mr Sinodinous, while in 2014 being questioned by an enquiry, is believed to have set a record for the frequency with which the condition manifested.  Fortunately, the enquiry handed down no adverse findings against him and almost immediately, his memory appeared miraculously to recover, enabling the Australian Liberal Party government to appoint him ambassador to the US in 2019 so there's that.  The following transcript is wholly fake news:

Donald Trump: "What did you and Joe Biden talk about?"

Arthur Sinodinous: "I can't remember."

Donald Trump: "Not to worry, he won't remember either."

In the rich slang of the NSW bar, the condition once known as RCM (Royal Commission Memory) is now also referred to as “Sinodinos Syndrome”, on the model of “Marcinkus Syndrome” which describes the medical status of Roman Catholic priests who, being investigated for this, that or the other, although seemingly fit and healthy, are never able to be certified quite well enough to be interviewed by police or other authorities.  The condition is named after Archbishop Paul Marcinkus (1922–2006; President of the Institute for the Works of Religion (the “Vatican Bank’) 1971-1989).

Quartervent

Quartervent (pronounced kwawr-ter-vent)

A small, pivoted, framed (or semi-framed) pane in the front or rear side-windows of a car, provided to optimize ventilation.

1930s: The construct was quarter + vent.  Dating from the late thirteenth century, the noun quarter (in its numerical sense) was from the Middle English quarter, from the Anglo-Norman quarter, from the Old French quartier, from the Latin quartarius (a Roman unit of liquid measure equivalent to about 0.14 litre).  Quartus was from the primitive Indo-European kweturtos (four) (from which the Ancient Greek gained τέταρτος (tétartos), the Sanskrit चतुर्थ (caturtha), the Proto-Balto-Slavic ketwirtas and the Proto-Germanic fedurþô).  It was cognate to quadrus (square), drawn from the sense of “four-sided”.  The Latin suffix –arius was from the earlier -ās-(i)jo- , the construct being -āso- (from the primitive Indo-European -ehso- (which may be compared with the Hittite appurtenance suffix -ašša-) + the relational adjectival suffix -yós (belonging to).  The suffix (the feminine –āria, the neuter -ārium) was a first/second-declension suffix used to form adjectives from nouns or numerals.  The nominative neuter form – ārium (when appended to nouns), formed derivative nouns denoting a “place where stuff was kept”.  The Middle English verb quarteren, was derivative of the noun.  Dating from the mid fourteenth century, vent was from the Middle English verb venten (to furnish (a vessel) with a vent), a shortened form of the Old French esventer (the construct being es- + -venter), a verbal derivative of vent, from the Latin ventus (wind), in later use derivative of the English noun.  The English noun was derived partly from the French vent, partly by a shortening of French évent (from the Old French esvent, a derivative of esventer) and partly from the English verb.  The hyphenated form quarter-vent is also used and may be preferable.  Quarter-vent is a noun; the noun plural is quarter-vents.  In use, the action of using the function provided by a quarter-vent obviously can be described with terms like quarter-venting or quarter-vented but no derived forms are recognized as standard.

1959 Cadillac Eldorado Biarritz.

Like almost all US passenger cars, the post-war Cadillacs all had quarter-vents (“vent windows” or “ventiplanes” to the Americans) and on the most expensive in the range they were controlled by an electric motor, a feature optional on the lesser models.  This was a time when the company's slogan “Standard of the World” really could be taken seriously.  In 1969, with General Motors (GM) phasing in flow-through ventilation, Cadillac deleted the quarter-vents, meaning purchasers no longer had to decide whether to pay the additional cost to have them electrically-activated (a US$71.60 option on the 1968 Calais and De Ville).  GM's early implementation of flow-through ventilation was patchy so the change was probably premature but by 1969 the system was perfected and as good as their air-conditioning (A-C), famous since the 1950s for its icy blast.    

The now close to extinct quarter-vents were small, pivoted, framed (or semi-framed) panes of glass installed in the front or rear side windows of a car or truck; their purpose was to provide occupants with a source of ventilation, using the air-flow of the vehicle while in motion.  The system had all the attributes of other admirable technologies (such as the pencil) in that it was cheap to produce, simple to use, reliable and effective in its intended purpose.  Although not a complex concept, GM in 1932 couldn’t resist giving the things an impressively long name, calling them “No Draft Individually Controlled Ventilation” (NDICV being one of history’s less mnemonic initializations).  GM’s marketing types must have prevailed because eventually the snappier “ventiplanes” was adopted, the same process of rationality which overtook Chrysler in 1969 when the public decided “shaker” was a punchier name for their rather sexy scoop which, attached directly to the induction system and, protruding through a carefully shape lacuna in the hood (bonnet), shook with the engine, delighting the males aged 17-39 to whom it was intended to appeal.  “Shaker” supplanted Chrysler’s original “Incredible Quivering Exposed Cold Air Grabber” (IQECAG another dud); sometimes less is more.  Adolf Hitler (1889-1945; Führer (leader) and German head of government 1933-1945 & head of state 1934-1945) suggested a good title for his book might be Viereinhalb Jahre [des Kampfes] gegen Lüge, Dummheit und Feigheit (Four and a Half Years of Struggle against Lies, Stupidity and Cowardice) but his publisher thought that a bit ponderous and preferred the more succinct Mein Kampf: Eine Abrechnung (My Struggle: A Reckoning) and for publication even that was clipped to Mein Kampf.  Unfortunately, the revised title was the best thing about it, the style and contents truly ghastly and it's long and repetitious, the ideas within able easily to be reduced to a few dozen pages (some suggest fewer but the historical examples cited for context do require some space).

The baroque meets mid-century modernism: 1954 Hudson Italia by Carrozzeria Touring.  

Given how well the things worked, there’s long been some regret at their demise, a process which began in the 1960s with the development of “through-flow ventilation”, the earliest implementation of which seems to have appeared in the Hudson Italia (1954-1955), an exclusive, two-door coupé co-developed by Hudson in Detroit and the Milan-based Italian coachbuilder Carrozzeria Touring.  Although some of the styling gimmicks perhaps haven’t aged well, the package was more restrained than some extravagances of the era and fundamentally, the lines were well-balanced and elegant.  Unfortunately the mechanical underpinnings were uninspiring and the trans-Atlantic production process (even though Italian unit-labor costs were lower than in the US, Touring’s methods were labor-intensive) involved two-way shipping (the platforms sent to Milan for bodies and then returned to the US) so the Italia was uncompetitively expensive: at a time when the bigger and more capable Cadillac Coupe de Ville listed at US$3,995, the Italia was offered for US$4,800 and while it certainly had exclusivity, it was a time when there was still a magic attached to the Cadillac name and of the planned run of 50, only 26 Italias were produced (including the prototype).  Of those, 21 are known still to exist and they’re a fixture at concours d’élégance (a sort of car show for the rich, the term an un-adapted borrowing from the French (literally “competition of elegance”) and the auction circuit where they’re exchanged between collectors for several hundred-thousand dollars per sale.  Although a commercial failure (and the Hudson name would soon disappear), the Italia does enjoy the footnote of being the first production car equipped with what came to be understood as “flow-through ventilation”, provided with a cowl air intake and extraction grooves at the top of the rear windows, the company claiming the air inside an Italia changed completely every ten minutes.  For the quarter-vent, flow-through ventilation was a death-knell although some lingered on until the effective standardization of A-C proved the final nail in the coffin.

1965 Ford Cortina GT with eyeball vents and quarter-vents.

The car which really legitimized flow-through ventilation was the first generation (1962-1966) of the Ford Cortina, produced over four generations (some claim it was five) by Ford’s UK subsidiary between 1962-1982).  When the revised model displayed at the Earls Court Motor Show in October 1964, something much emphasized was the new “Aeroflow”, Ford’s name for through-flow ventilation, the system implemented with “eyeball” vents on the dashboard and extractor vents on the rear pillars.  Eyeball vents probably are the best way to do through-flow ventilation but the accountants came to work out they were more expensive to install than the alternatives so less satisfactory devices came to be used.  Other manufacturers soon phased-in similar systems, many coining their own marketing trademarks including “Silent-Flow-Ventilation”, “Astro-Ventilation” and the inevitable “Flow-thru ventilation”.  For the Cortina, Ford took a “belt & braces” approach to ventilation, retaining the quarter-vents even after the “eyeballs” were added, apparently because (1) the costs of re-tooling to using a single pane for the window was actually higher than continuing to use the quarter-vents, (2) it wasn’t clear if there would be general public acceptance of their deletion and (3) smoking rates were still high and drivers were known to like being able to flick the ash out via the quarter-vent (and, more regrettably, the butts too).  Before long, the designers found a way economically to replace the quarter-vents with “quarter-panes” or “quarter-lights” (a fixed piece of glass with no opening mechanism) so early Cortinas were built with both although in markets where temperatures tended to be higher (notable South Africa and Australia), the hinged quarter-vents remained standard equipment.  When the Mark III Cortina (TC, 1970-1976) was released, the separate panes in any form were deleted and the side glass was a single pane.

Fluid dynamics in action: GM's Astro-Ventilation.

So logically a “quarter-vent” would describe a device with a hinge so it could be opened to provide ventilation while a “quarter-pane”, “quarter-light” or “quarter-glass” would be something in the same shape but unhinged and thus fixed.  It didn’t work out that way and the terms tended to be used interchangeably (though presumably “quarter-vent” was most applied to those with the functionality.  However, the mere existence of the fixed panes does raise the question of why they exist at all.  In the case or rear doors, they were sometimes a necessity because the shape of the door was dictated by the intrusion of the wheel arch and adding a quarter-pane was the only way to ensure the window could completely be wound down.  With the front doors, the economics were sometimes compelling, especially in cases when the opening vents were optional but there were also instances where the door’s internal mechanisms (the door opening & window-winding hardware) were so bulky the only way to make stuff was to reduce the size of the window.  In some cases, manufacturers "solved" the problem by making rear side glass fixed which lowered their costs but it was never popular with customers.

1976 Volkswagen Passat B1 (1973-1980 (1988 in Brazil)) without quarter-vents, the front & rear quarter-panes fixed.

The proliferation of terms could have come in handy if the industry had decided to standardize and the first generation Volkswagen Passat (1973-1980) was illustrative of how they might been used.  The early Passats were then unusual in that the four-door versions had five separate pieces of side glass and, reading from left-to-right, they could have been classified thus: (1) a front quarter-pane, (2) a front side-window, (3) a rear side-window, (4) a rear quarter-pane and (5) a quarter-window.  The Passat was one of those vehicles which used the quarter-panes as an engineering necessity to permit the rear side-window fully to be lowered.  However the industry didn’t standardize and in the pre-television (and certainly pre-internet) age when language tended to evolve with greater regional variation, not even quarter-glass, quarter-vent, quarter-window & quarter-pane were enough and the things were known variously also as a “fly window”, “valence window”, “triangle window” and (possibly annoying architects) “auto-transom”, the hyphen used and not.

PA Vauxhall Velox (1957-1962): 1959 (left) and 1960 (right).  The one-piece rear window was introduced as a running-change in late 1959.

Before flow-through ventilation systems and long before A-C became ubiquitous, quarter-vents were the industry standard for providing airflow to car interiors and it was common for them to be fitted on both front and rear-doors and frequently, the rear units were fixed quarter-panes (the lowering of the side window thing).  A special type of fixed quarter-pane were those used with rear windows, originally an economic imperative because initially it was too expensive to fabricate one piece glass to suit the “wrap-around styles becoming popular.  Improved manufacturing techniques let the US industry by the early 1950s overcome the limitations but elsewhere, the multi-piece fittings would continue to be used for more than a decade.

1957 Mercury Turnpike Cruiser (left), details of the apparatuses above the windscreen (centre) and the Breezeaway rear window lowered (right)

The 1957 Mercury Turnpike Cruiser was notable for (1) the truly memorable model name, (2) introducing the “Breezeway" rear window which could be lowered and (3) having a truly bizarre arrangement of “features” above the windscreen.  Unfortunately, the pair of “radio aerials” protruding from the pods at the top of the Mercury’s A-pillars were a mere affectation, a “jet-age” motif decorating what were actually air-intakes.

Brochure for 1957 Mercury Turnpike Cruiser promoting, inter-alia, the Breezeway retractable rear window.

A three-piece construction was however adopted as part of the engineering for the “Breezeway”, a retractable rear window introduced in 1957 on the Mercury Turnpike Cruiser.  It was at the time novel and generated a lot of publicity but the concept would have been familiar to those driving many roadsters and other convertibles which had “zip-out” rear Perspex screens, allowing soft-top to remain erected while the rear was open.  Combined with the car’s quarter-vents, what this did was create the same fluid dynamics as flow-through ventilation.  The way Mercury made the retractable glass work was to section the window in a centre flat section (some 80% of the total width), flanked by a pair of fixed quarter-panes.  After the run in 1957-1959, it was resurrected for use on certain Mercury Montclairs, Montereys and Park Lanes.

1958 (Lincoln) Continental Mark III Convertible (with Breezeway window).  The platform was unitary (ie no traditional chassis) which with modern techniques easily was achievable on the sedans and coupes but the convertible required so much additional strengthening (often achieved by welding-in angle iron) that a Mark III Convertible, fueled and with four occupants, weighed in excess of 6000 lb (2720 kg). 

Ford must have been much taken with the feature because it appeared also on the gargantuan “Mark” versions of the (Lincoln) Continentals 1958, 1959 & 1960, dubbed respectively Mark III, IV, & V, designations Ford shamelessly would begin to recycle in 1969 because the corporation wanted the new Mark III to be associated with the old, classic Continental Mark II (1956-1957) rather than the succeeding bloated trio.  The “Breezeway” Lincolns also featured a reverse-slanted rear window, something which would spread not only to the Mercurys of the 1960s but also the English Ford Anglia (105E, 1959-1968) and Consul Classic (1961-1963) although only the US cars ever had the retractable glass.  The severe roofline was used even on the convertible Continentals, made possible by them sharing the rear window mechanism used on the sedan & couple, modified only to the extent of being retractable into a rear compartment.

1974 Lincoln Continental Town Car with mini vents.

In the 1970s Lincoln introduced the novelty of “mini-vents” which raised and lowered separately from the main side-glass.  Smoking was at the time socially acceptable (in some circles it must have appeared obligatory) and there was a lot of it about so engineers devoting time to finding a better way for those wanting to “flick ash out the window” while running the A-C wasn’t surprising.  Those visualizing a “flick” in process might be surprised such a thing existed because if in a modern vehicle, its shape honed in wind-tunnels and computer simulations, what would likely happen would be “blowback”.  That’s because the shape is aerodynamically efficient (with a “buffer zone” very close to the surface) and disrupting that by lowering a window shifts the inside pressure from positive to negative, ask thus being “sucked-in”.  However, on something like a 1974 Lincoln Continental (which conceptually can be imagined as one brick sitting atop two), the buffer zone can (depending on speed) extend as as much as 3 feet (close to a metre) from the body.  The meant ash was flicked into the “buffer zone” and it didn’t end up back in the cabin.  The vents didn’t last (another casualty of the quest for lower drag) but as late as 1985 they appeared as a US$72 extra and were known in the industry as the “smoker's option”.

1967 Chevrolet Camaro 327 Convertible with vent windows (left), 1969 Chevrolet Camaro ZL1 without vent windows (centre) and Lindsay Lohan (b 1986) & Jamie Lee Curtis (b 1958) in 1969 Chevrolet Camaro Convertible during filming of the remake of Freaky Friday (2003), Los Angeles, August 2024.  Freakier Friday is slated for release in August, 2025).

Through Chevrolet's COPO (Central Office Production Order) system, 69 1969 Camaros were built with the ZL1, an all-aluminum version of the 427 cubic inch (7.0 litre) big-block V8.  The COPO had been established as an efficient way to coordinate the production of fleet orders (law enforcement agencies, utility companies etc) for runs of vehicles in a certain specification but the drag racing community and others worked out it could be used also as “back-door” way to order small runs of cars with otherwise unavailable high-performance engines.  The Freakier Friday Camaro (badged as a 396 SS but several were used during filming including at least one with a roll-over bar for the stunt work) lacks the vent windows which were deleted from the range after 1967 when “Astro-Ventilation” (GM’s name for flow-through ventilation) was added.  In North American use, the devices typically are referred to as “vent windows” while a “quarter light” is a small lamp mounted (in pairs) in the lower section of the front bodywork and a “quarter-vent” is some sort of (real or fake) vent installed somewhere on the quarter panels.  As flow-through ventilation became standardized and A-C installation rates rose, Detroit abandoned the quarter-vent which pleased industry because it eliminated both parts and labor, lowering the cost of production (the savings absorbed as profits rather than being passed to the customers).  On the small, cheap Ford Pinto (1971-1980), removing the feature saved a reported US$2.16 per unit but, being small and cheap, A-C rarely was ordered by Pinto buyers which was probably a good thing because, laboring under the 1970s burdens of emission controls, the weight of  impact-resistant bumper bars and often an automatic transmission a Pinto was lethargic enough with out adding power-sapping A-C compressor and plumbing.  Responding (after some years of high inflation) to dealer feedback about enquires from Pinto customers indicating a interest in the return of vents, Fords cost-accountants calculated the unit cost of the restoration would be some US$17.  

Ford Australia’s early advertising copy for the XA Falcon range included publicity shots both with and without the optional quarter-vents (left) although all sedans & station wagons had the non-opening, rear quarter-panes, fitted so the side window completely could be lowered.  One quirk of the campaign was the first shot released (right) of the “hero model” of the range (the Falcon GT) had the driver’s side quarter-vent airbrushed out (how “Photoshop jobs” used to be done), presumably because it was thought to clutter a well-composed picture.  Unfortunately, the artist neglected to defenestrate the one on the passenger’s side.

Released in Australia in March 1972, Ford’s XA Falcon was the first in the lineage to include through-flow ventilation, the previously standard quarter-vent windows moved to the option list (as RPO (Regular Production Option) 86).  Because Australia often is a hot place and many Falcons were bought by rural customers, Ford expected a high take-up rate of RPO 86 (it was a time when A-C was expensive and rarely ordered) so the vent window hardware was stockpiled in anticipation.  However, the option didn’t prove popular but with a warehouse full of the parts, they remained available on the subsequent XB (1973-1976) and XC (1976-1979) although the take-up rate never rose, less the 1% of each range so equipped and when the XD (1979-1983) was introduced, there was no such option and this continued on all subsequent Falcons until Ford ceased production in Australia in 2016, by which time A-C was standard equipment.

Great moments in tabloid journalism: Sydney's Sun-Herald, Sunday 25 June, 1972.  The Sun-Herald was then part of the Fairfax group, proving Rupert Murdoch (b 1931) can't be blamed for everything.

The infrequency with which RPO 86 was ordered has been little noted by history but on one car with the option the fixtures did become a element which enabled a owner to claim the coveted “one-of-one” status.  In August 1973, near the end of the XA’s run, with no fanfare, Ford built about 250 Falcons with RPO 83, a bundle which included many of the parts intended for use on the stillborn GTHO Phase IV, cancelled (after four had been built) in 1972 after a newspaper generated one of their moral panics, this time about the “160 mph super cars” it was claimed the local manufacturers were about to unleash and sell to males ages 17-25.  Actually, none of them were quite that fast but not often has the tabloid press been too troubled by facts and the fuss spooked the politicians (it's seldom difficult to render a "minister horrified").  Under pressure, Holden cancelled the LJ Torana V8, Ford the GTHO Phase IV and Chrysler reconfigured it's E55 Charger 340 as a luxury coupé, available only with an automatic transmission and no high-performance modifications.

The “quarter-vent XA RPO 83 GT”: 1973 Ford Falcon XA GT sedan (Body Identification: 54H; Model Code: 18238) in Calypso Green (code J) with Onyx Black (code B) accents over Black Vinyl (Code B) with 351 4V V8 (Code T) and four-speed manual transmission (Code L).  It’s the only one produced with both RPO 83 (a (variably fitted) bundle of parts left-over from the aborted GTHO Phase IV project) and RPO 86 (front quarter-vent windows).  In the collector market they're referred to usually as “the RPO83 cars”.

So in 1973 Ford's warehouse still contained all the parts which were to be fitted to the GTHO Phase IV so they’d be homologated for competition and although the rules for racing had been changed to ensure there was no longer any need to produce small batches of “160 mph (257 km/h) super cars”, Ford still wanted to be able to use the heavy-duty bits and pieces in competition so quietly conjured up RPO 83 and fitted the bundle on the assembly line, most of the cars not earmarked for allocation to racing teams sold as “standard” Falcon GTs.  Actually, it’s more correct to say “bundles” because while in aggregate the number of the parts installed was sufficient to fulfil the demands of homologation, not all the RPO 83 GTs received all parts so what a buyer got really was “luck of the draw”; with nobody being charged extra for RPO 83, Ford didn’t pay too much attention to the details of the installations and many who purchased one had no idea the parts had been included, the manual choke's knob the only visually obvious clue.  Ford made no attempt to publicize the existence of RPO 83, lest the tabloids run another headline.  It’s certain 250 RPO 83 cars were built (130 four-door sedans & 120 two-door Hardtops) but some sources say the breakdown was 131 / 121 while others claim an addition nine sedans were completed.  Being a genuine RPO 83 car, the Calypso Green GT attracts a premium and while being only RPO 83 with quarter-vent windows is not of any great significance, it does permit the prized “one-of-one” claim and not even any of the four GTHO Phase IVs built (three of which survive) had them.  In the collector market, the “one-of-one” status can be worth a lot of money (such as a one-off convertible in a run of coupés) but a Falcon’s quarter-vents are only a curiosity.

The Bathurst 1000 winning RPO83 Falcon GTs, 1973 (left) & 1974 (right).

All else being equal, what makes one RPO83 more desirable than another is if it was factory-fitted with all the option's notional inventory and most coveted are the ones with four-wheel disk brakes.  Because the project was focused on the annual endurance event at Bathurst's high-speed Mount Panorama circuit, the disks were as significant as an additional 50 horsepower and a few weeks before the RPO 83 run they'd already been fitted to the first batch of Landaus, which were Falcon Hardtops gorped-up (what bling used to be called) with hidden headlights, lashings of leather, faux woodgrain and a padded vinyl roof, all markers of distinction in the 1970s and, unusually, there was also a 24 hour analogue clock.  Essentially a short wheelbase, two-door LTD (which structurally was a Falcon with the wheelbase stretched 10 inches (250 mm) to 121 (3075 mm)), the Landau was not intended for racetracks but because it shared a body shell and much of the running gear with the Falcon GT Hardtops, Ford claimed Landau production counted towards homologation of the rear disks.  Fearing that might be at least a moot point, a batch were installed also on some of the RPO83 cars and duly the configuration appeared at Bathurst for the 1973 event, their presence of even greater significance because that was the year the country switched from using imperial measures to metric, prompting the race organizers to lengthen the race from 500 miles (804 km) to 625 (1000), the Bathurst 500 thus becoming the Bathurst 1000.  RPO83 Falcon GTs won the 1973 & 1974 Bathurst 1000s.

The “quarter-vent XB GT”: 1973 Ford Falcon XB GT sedan (Body Identification: 54H; Model Code: 18338) in Polar White (Code 3) with Onyx Black (code B) accents over Parchment Vinyl (Code P) with 351C 4V V8 (Code T) and four-speed manual transmission (Code L).  The only one produced with RPO 86 (front quarter-vent windows).

So with a large stock sitting in the warehouse, despite the dismally low take-up rate, the quarter-vents remained available when the XB Falcon (1973-1976) range was released and of the 1952 XB GT sedans sold (there were also 949 two-door Hardtops) a single buyer ticked the RPO 86 box.  Again, although granting the coveted “one-of-one” status, it’s not something of great significance although the car to which the pair of vents was fitted is one of the more desirable XB GTs because it was one of the 139 XB GTs built with the combination of the “4V Big Port” 351 V8 and four-speed Top Loader manual transmission.  The first 211 XB GTs received the fully-imported 351 Clevelands, “using up” what was in stock, subsequent models switching to the locally made variant.

US Built 351C-4V in 1973 XB Falcon GT.

Ford Australia had been importing from the US the high-performance 351C-4V (4 venturi (ie two-barrel carburetor)) V8 for use in the GT but when advised US production of that configuration was ending, the decision was taken to produce a local “high-performance” version of the 351 using the 351C 2V “small port” cylinder heads with “open” combustion chambers and a four-barrel carburetor; Ford Australia only ever manufactured the “small port” heads.  That means the Australian nomenclature “351C-4V” (small ports & four barrel carburetor) differs in meaning from that used in the US where it translated to “big ports & four barrel carburetor”.  It sounded a retrogressive step and while there was some sacrifice in top-end power, the antipodean combo turned out to be ideal for street use because the fluid dynamics of the flow rate through the smaller ports made for better low and mid-range torque (most useful for what most drivers do most of the time) whereas the big-port heads really were optimized for full-throttle operation, something often done on race tracks but rarely on public roads… even in the Australia of the early 1970s.  Still, some did miss the responsiveness of the high-compression US-built engine, even if the difference was really apparent only above 80 mph (130 km/h).

The other ceremony which happened in Australia on 11 November, 1975: Ford Australia's photo shoot, Melbourne, Victoria.

Although only 2,901 XB GTs were produced, as the “halo” model it was an important image-maker and the XB range proved successful with almost 212,000 sold over its 34 month life (over 18 months in a generally more buoyant economy XA production had reached over 129,000).  Stylistically, the XB was an improvement over the poorly detailed XA and much was made (among Ford's claimed 2,056 changes from the XA) of the headlight’s high-beam activation shifting from a foot-operated button to a steering column stalk which, thirty-odd years on from the achievement of nuclear fission, doesn’t sound like much but motoring journalists had for years been advocating for “a headlight flasher”, having been impressed by the “safety feature” when being “flashed” on the German Autobahns by something about to pass at high speed.  More welcome still was the GT’s four-wheel disk brakes, acknowledged as good as any then in volume production.  The success of the XB coincided with Ford Australia’s two millionth vehicle leaving the assembly line so on Tuesday 11 November, 1975, Ford’s public relations office invited journalists and camera crews to a ceremony to mark the occasion, laying on the usual catering (including free cigarettes!) to ensure a good attendance.

Ford Australia pre-release publicity shot for the XB range release (embargoed until 15 September 1973).

1973 Ford Falcon XB GT Hardtop (Body Identification: 65H; Model Code: 18318) in Yellow Blaze (Code M) with Onyx Black (code B) accents over Black Vinyl (Code B) with 351C 4V V8 (Code T) and three-speed T-Bar automatic transmission (Code B).  Because the various side windows used by the Hardtop, Ute and Panel Van derivatives were different to fit the door and roof shapes, the quarter-vents were never offered on those and RPO 86 on the Hardtops was the dreaded vinyl roof in tan.  The sunroof (RPO 10) was a rarely (168 Falcons and 244 Fairmonts) specified option.

Unfortunately, the pictures of the dutifully polished XB Fairmont (a Falcon with some gorp) sedan didn’t generate the publicity expected because the next editions of the daily newspapers (there were then a lot of those and they sold in big numbers) had a more sensational story to cover: On that Tuesday Sir John Kerr (1914–1991; governor-general of Australia 1974-1977) had dismissed from office Gough Whitlam (1916–2014; prime minister of Australia 1972-1975) and his troubled administration.  It was the first time the Crown had sacked a prime-minister since William IV (1765–1837; King of the UK 1830-1837) in 1834 dismissed Lord Melbourne (1779–1848; prime minister of the UK 1834 & 1835-1841) and although in 1932 Sir Philip Game (1876–1961; governor of NSW 1930-1935) had sundered the commission of Jack Lang (1876–1975; premier of New South Wales 1925-1927 & 1930-1932), most Australians who pondered such things believed the days of meddling viceroys were done.  Sir John however proved the royal prerogative still existed (although paradoxically perhaps now only in the hands of a monarch’s representative rather than their own) and the XB Falcon's footnote in the history of Australian manufacturing passed almost unnoticed.