Header image – detail from Pietro Vesconti’s chart of 1321 with (inset) ‘swallowtail’ crenellations on a castle in Almeria.

In treating the large, square, foldout drawing d’Imperio mentions this ‘swallowtail’ motif, initially describing one detail so adorned as being ‘like a castle’. The passage occurs on p.21 of Elegant Enigma. I’ll quote what isn’t speculation.

… a structure like a castle .. [with] a high crenelated wall and a tall central tower.”

Even in that passage, there is an implicit assumption that the detail will be a ‘portrait’ having a physical counterpart somewhere – but let that go for the moment.

We may date the beginning of modern conversations to about 1996, when Guy Thibault was wrestling with the whole drawing and working from an idea that it represented a map and a presumption that everything in the drawing, and in the manuscript altogether, would be a product of, and would refer to, nothing but western Europe’s ‘Latin’ (i.e. western Christian) culture.

He had reached a point where he was homing in on some such region as Venice, or Avignon, when Rene Zandbergen mailed a note to the list. It was not addressed to Thibault and did not engage with anything Thibault had shared from his own work, but was addressed instead to the ‘audience’ at large. Since the drawing was Thibault’s current project, others on the list (quite properly) did not reply and left responses to Guy.

Rene Zandbergen had written:

Tue Jun 18 11:02

Dear all,

I think that it is reasonable to assume that the little castle on f85/86, near the upper right rosette on the mega-foldout is a ‘fantasy’ castle, not intended to represent an existing one…. What I have been trying to find out (so far unsuccessfully) is whether the style of the crenellations of the square and circular buildings give any indication of age and origin of the VMs. These crenellations are .. of the ‘swallow’s tail’ type. ..

So far I have only seen this on medieval buildings in Northern Italy. If this style was already ‘en vogue’ in the earlier middle ages (up to, say, 1200), then, even if it is confined to N.Italy, it does not help us much. Anybody could have seen these or known about them; even Roger B[acon]. If the style is from a later period, it might tell us something, especially if it is regionally confined.

Anybody have any ideas?

Note – what I find surprising is that Zandbergen’s problem was easily resolved. Any good history of medieval architecture in general, or military architecture in particular could have provided the information that such crenellations are not used in Latin Europe before c.1100 AD. Since some examples are extant today, it is clearly impossible to date or place all the matter in the manuscript by reference to that one detail. It might be argued to offer a provisional terminus a quo of 1100AD with the radiocarbon dating providing the terminus ad quem of c.1438 AD. But if the rest of the drawing pre-dates the inclusion of the ‘swallowtails’ by any greater period of time, only the terminus ad quem might stand.

There is nothing about the way the crenellations are drawn in the manuscript which can tell us, of themselves, where, when or by whom the ‘swallowtail’ details were included. Considered in isolation, the ‘castle-like’ form cannot be asserted to have been a ‘portrait-style’ image. I’m not sure what genre of medieval imagery might be described as ‘fantasy’. The map has nothing in common with the drolleries, nor with the religious-visionary imaginings of persons such as Opicinus or Hildegard of Bingen.

In response to Rene Zandbergen’s introducing this note of fantasy, Thibault had replied, evidently a little disconcerted:

18 Jun 1996 11:19:03

I don’t recall if I have even commented on this castle, so please excuse me if I re-state these ideas… Suppose the connection between circles are indeed bridges, is there any way to find out [i.e. identify] ALL the medieval towns with nine (or more) bridges? I guess Venice and Avignon would fit, are there more ? If we find a point linked with those bridges in the same way as depicted in the “map” maybe we could progress a bit…

Did you notice the writings on the right side of the fold out seems to be upside down as if the scribe did not notice/know the full pattern of the circles when he was writing…

Note – I’ve corrected a few typos in the original. I do not think that English was Guy’s first language. 
As full disclosure, I should say that my own analysis of the larger drawing –  engaged after reading Nick Pelling’s post of May 29th., 2010 –  led finally to a conclusion that the whole of the large drawing is a map, one in which western Europe does not feature, save for Sicily, and that altogether it is no product of the western or the Arabic cartographic traditions, though some elements occur in common with the earliest Genoese and Venetian cartes marine
The ‘castle’ is no literal portrait, but it is certainly no fantasy. In much the way images of Egyptian deities or Christian saints’ images were constructed, the so-called ‘castle’ detail combines a reasonable idea of its subject, before adding the ‘swallowtail’ motif for the cultural significance it bore.
The ‘swallowtails’ thus serve to add practical and informative detail for anyone able to read the whole map. The spiral of ‘stars’ is a version of the motif (also seen in slightly different form, later, in the charts of Piri Reis), indicating a body of water mostly enclosed and relatively shallow. Almost all of the map’s research which I decided share online was published between 2011- 2013.
For people who have difficulty understanding why someone might use star-motifs to signify  seawater, may I recommend  … this.  It may also help explain why Hammond felt comfortable translating Homer’s οἶνοψ πόντος not, as was customary, by “wine-dark sea” but by “sparkling sea”. On which see D.M. Goldstein’s review, for the Bryn Mawr Classical Gazette,  of Mark Hammond, The Odyssey (2000).


During the five years from 1996-2001, Zandbergen’s invitation does not seem to have moved his own efforts much further forward. By the end of that time, it was no longer Guy Thibault but John Grove who was actively working on the large drawing which, in honesty, I can only describe as the Voynich map.

Much of what Grove says in the following passage is anachronistic. His understanding of the Guelf-Ghibelline split is inaccurate if, as it sounds, he perceived it in terms of national identities, but so far as I can discover it was he who first informed the ‘Voynich community’ of the swallowtails’ political connotations in medieval Italy. He presumes the ‘stars’ must refer to the heavens and also imagines that images cannot be read without written text to explain them..


Grove wrote:

I’ve been having fun reading about the two types of battlements that seem to have evolved directly from the dispute between the two opposing factions in Italian/German history. The Guelph used the square battlements, while the Ghibelline supporters flaunted their support in their architecture with the ‘fishtail’ battlements. I believe from what I’ve been able to locate on the web that these Ghibelline designs on castle battlements are indeed limited to castles in Northern Italy and Germany that were built in the period 1100-1300. Since the factions were not so big a deal in the 15th and 16th century, the castle design in the VMS only leads to (once again) presenting us with a rough geographical region – the same as has been discussed for quite some time (!).

Why a Ghibelline Castle is present in the large foldout and not a Guelph style may be meaningless to the author except that he lived near one and drew what he knew. The wall extending from the castle around the spiral of stars may be indicative that the castle and wall are only a symbolic representation of a formidable enclosure protecting the ‘heavens’. I don’t know if this sort of speculation has any place in discussions because one could never really prove any number of suppositions until we can actually read the text.


Again to be fair to my readers, I should say that my own survey of the ‘swallowtail’ motif’s occurrence in Europe to1438 (including in manuscript illustrations, charts and other artefacts,chess-rook-ivory-persian-style-12th-c.-constantinople-bargello-mus such as mosaics and early chess-pieces) led me to conclude that, during that period, the ‘swallowtail’ motif as such signified the limit of an area whose people were subject to an emperor, and examples show that in drawing it could refer not only to areas connected to the western emperor but, also, to the eastern Christian emperor, or the Mongol-Chinese emperor. It signified an ‘imperial boundary’.
Image (right)’ Castle’ – rook – chess piece in Persian style. 12thC. from Constantinople. now in the Bargello Museum. First published though voynichimagery, 31st. October 2012. A Persian embassy came to Charlemagne’s court, and a mosaic in Bobbio (c.10thC) shows chessplayers adjacent to Persian-Parthian motifs. 
A comparable – not identical – form has the same significance as early as the Roman Tabula Peutingeriana. Because instances of the ‘swallowtails’ still survive on buildings in and beyond Europe, it is evident that their significance in architecture, generally expressed, is also as marking the boundary of territory regarded – in something of the way a modern embassy is – as one whose residents declare in this way a level of independence from other duties and laws, owing allegiance to their own emperor and being entitled (at least nominally) to imperial protection.
A prime example of expatriate/colonial use is found in what was once a Genoese enclave at Caffa, in the Black Sea.

Back in 2001, John Grove had begun another mailing list topic entitled ‘Dovetail battlements in Rome?’ where he mentioned a drawing he had noticed. 

In response, Jorge Stolfi commented (14th Jan. 2001), nipping in the bud any suggestion that ‘swallowtails’  adorned the walls of ancient Rome, and incidentally proving a model for how such research should be organised.  He first shows that he has considered, and checked, Grove’s reference (the precedent), then provides full details of his own sources, and adds his own comments.  

> [John Grove:] While scanning the online Vatican Library images I found this 1498 sketch of Rome…
> http://www.ibiblio.org/expo/vatican.exhibit/exhibit/b-archeology/images/arch25.jpg

Jorge Stolfi:

The caption to that figure is

J. Annius, Antiquitates
Rome, 1498


This image of the earliest stage in the development of Rome is much cruder than Pietro del Massaio’s. Though the unknown artist tried to represent the small compass and exact contours of the early city, and labeled the Forum and other places of note, the crenelated walls and towers reveal the limits of his imagination. Unfortunately the text he illustrated was even less accurate; it was a forgery by the papal theologian Giovanni Nanni of Viterbo.

Inc. II 274 fol. M verso arch25 TG.15

… Jorge Stolfi.

Rene Zandbergen  had replied by posting link to his website where two images of a castle in Friuli could be seen.

Dana Scott had replied to Grove:

6th. January 2001

Then again, just maybe the author of the VMS (whom I think may have been Andrea Cesalpino) supported the Ghibellines of Arezzo (Andrea was born in Arezzo) and Pisa (where he was educated and taught) and the fact that Dante ended up switching his support from the Guelphs to the Ghibellines. Perhaps.

Dana Scott

Which – for all that I admire Scott’s work on the plant-pictures – is another example of chaining speculation to speculation, on premises insubstantial.

But Dana’s response shows that even so early as 2001 the study was moving away from efforts to discover the sense of the manuscript’s drawings, to using bits and pieces from the drawings to serve as springboard for a preferred theory.

Dana’s ‘givens’ – as untested assumptions – are clear enough: that the ‘castle’ is a literal representation of some Italian building, that the significance to be attached to the ‘swallowtail’ or ‘fishtail’ crenellations is limited to Italian politics; that the whole content of the Voynich manuscript is the work of a single author, and that this imagined ‘author’ was a person of such importance in Europe’s intellectual history that his name was recorded in contemporary documents – and so on, and so forth.

Unrecognised by most members in 2001, what Nick Pelling would later describe as the ‘theory-wars’ had already begun.

A majority still held to the opinion, expressed by Kraus and reported by d’Imperio, that the manuscript had been made in Italy.

A couple accepted the opinion offered by Panofsky in 1932 that it was ‘from Spain or somewhere southern’. In fact, the entanglements between regions in the south-western Mediterranean make the ‘Italian/southern’ positions less oppositional than complementary.

The Prinke-Zandbergen ‘Germanic central Europe’ theory was still that of a small minority in 2001, for the simple reason that it found no support in the primary document (exclusive of some marginalia) and no competent specialist had ever suggested that the vellum or binding indicated origins in a German-speaking region.

So long as research remained focused on the manuscript itself, this would remain the case. As attention shifted to ‘theory-wars’, and standards dropped, so too did the process of interaction and the tactics employed by adherents of that novel theory.

It is a curious thing, but true, that neither of that theory’s chief proponents has ever, in twenty years, presented it formally with evidence, argument and the usual documentation. Attempting to find out just what the believers believe has proven very difficult indeed. The two key words appear to be ‘Germanic’ and ‘Rudolf’ but there’s surely more to it.

In 2006, Pelling would publish his Curse of the Voynich, which remained in print for about a decade. Pelling’s research, and opinions having evidently moved on by the end of that period, he withdrew Curse from publication. To me it seemed a pity, because the book contained more than its theoretical history for the manuscript; it included numerous original contributions to other aspects of the study, including codicology, palaeography and ‘Voynichese’ which – whether Pelling’s opinions were the ‘right’ answers or not – were a stimulus to further enquiry and discussion.

Who drew the ‘swallowtails’?

The simple fact is that by 1438, even if the so-called ‘castle’ had been a portrait of some structure then existing, the drawing could have been made by an Englishman, an Ethiopian, an Armenian or a Syrian, a Persian or a Nestorian Chinese, a Jew from Majorca or from Venice.. The greater Mediterranean was a very busy international thoroughfare and to the papal court of Avignon or Rome, as to the Sicilian court, came ambassadors and pilgrims, traders and travellers. Within Rome itself, hospices were built to house foreign pilgrims, so numerous were they, and one ws was built solely for the Ethiopians’ use. Anyone who saw any instance of the Latins’ usage would know what the ‘swallowtail’ signified. Anyone might have used it to signify ‘imperial boundary’.

Of itself, as one small detail in a large and complex drawing, the ‘swallowtail crenellations’ motif tells us only that this particular detail’s first enunciation is most likely to have occurred at some time between 1100AD and 1438.

One might then ask, a more ordinary research environment, what aim Koen’s group has in mind as they try to ‘map’ such physical examples as survive in 2021. We must just wait and see.

I chose a Spanish example of ‘swallowtail crenelations’ for the header. I might as easily have shown one from Caffa in the Black Sea, or another and important example from Sicily, but since most Voynich theorists are focused on Italy or on Germany, I thought to widen the lens a little.

Swallowtails – foreword.

Some time ago I quoted SirHubert’s comment:

.. breaking ciphers is all about testing hypotheses and finding *the* consistent solution, of which there will be only one. Historical research doesn’t admit of one neat solution and works very differently.

“SirHubert” comment to ciphermysteries, (December 10, 2013)

To unpack it a little, we can speak of ‘left-brain’ and ‘right brain’ strengths. The following comes from a discussion about computer programs, but it’s nicely short and clear.

The left brain is the bully brain. It doesn’t just complicate things with its logic, it goes one step further. It drowns out the free-thinking nature of the right brain. But first let’s deal with logic.

The left brain is mathematical and logical. So like all maths problems it likes to be correct every time. Which is fine when you’re dealing with maths and 7 + 3=10 (and can never be 11). Every thing has to be black and white.

It’s different when you’re drawing, or playing music or writing an article. You can have your black and whites and a range of rainbow colours. This of course drives your bully brain totally crazy. It’s trying desperately to pigeon-hole what you do into black and white. And of course, it fails. (Sean d’Souza)

Sometimes the right brain is described as the ‘creative’ or as the ‘feminine’ and the left brain as the ‘logical’ or ‘masculine’.

We all have both a left- and a right-brain, and ideally they should complement one another, but for historical reasons modern western society associated ‘left brain’ behaviour with ‘the superior sort’ – as a cultural, gender, national typecasting – and right-brain behaviour with ‘inferior types’ – as individuals or as groups. You know the sort of thing – ‘Foreigners/women are so very emotional’… ‘their sect of Christianity is superstitious; ours is rational’.

Throughout Mary d’Imperio’s Elegant Enigma you can see an (often-unconscious) suppression of the ‘inferior’ in the attitudes expressed both to people and to ideas, to the point where even wildest flights of unsupported guesswork and ‘historical’ fantasy are presented as if they were a left-brain product: that is, supposedly ‘logical’ inferences. I’ve provided examples in earlier posts about the Friedmans and d’Imperio’s book.

This confused mentality, which mis-identifies ideas springing from the imagination and presents them as if a product of logic, are the worst type to have engage with and attempt to discuss images.

True left-brainers have problems. They often develop enormous ‘blind spots’ in their idea of reality. They look for, and like, ‘the similar’ while tending to dislike and even not recognise ‘the different’. Right-brain skills are the most helpful when it comes to understanding images of any sort, but for rigorous analysis, both left- and right- should operate in concert.

Much of Wilfrid Voynich’s seminal talk of 1921 was of the ‘confused’ type – imagination presented as if the product of solid information and well-informed logic. He spins chains of speculation and sets historical fact side-by-side with his fictional history for the manuscript. The implied congruencies are an illusion.

The problem of misrepresenting imagination as ‘logic’ thus began early to infect studies of Beinecke MS 408. It was not only that people presented a baseless fiction as if a product of logic, but that they, themselves, believed it was so.

Because they believed their logical left-brain skills had produced an idea, and not their inventive right-brain skills, requests for the evidence and for an explanation of their reasoning were often met by silence, by dismissive noises, contempt and/or expressions of indignation.

If you think that’s an odd reaction for ‘left-brainers’ – because mathematics, computer programming and other ‘left-brain’ occupations expect any problem to be presented with both its solution and its working-out, I can only suggest that image-making and historical studies are regarded as easy, as ‘soft science’ and ‘mere right-brain stuff’ by the sort of person who identifies as a pure left-brainer.

So, while it is possible for some mathematicians to just gaze at the sky and produce the answer to a long and difficult set of equations, if you ask them to provide the evidence and a logical exposition, the best will do so without raising an eyebrow. None of the ‘how-dare-you-question-me’ about such experts. Of course if the person asking is a six-year old who has yet to hear the word algebra, the expert may decide to condense. The point is that an iconological analyst will offer the same depth of explanation too.

Provision of an answer with its working-out is also how the written part of the Voynich text is usually discussed – statistics and arguments from those statistics informing any posited ‘answer’. But the infuriating thing is that the very same people often accept (and what is worse, produce) very sloppy work when the subject shifts to the manuscript’s drawings.

It is as if they had an ‘either/or’ attitude, and switched off their analytical left-brain the moment the subject changed. Most show no sign of understanding the range of preliminary studies, or the appropriate methods needed to read accurately pictures made at least six hundred years ago, and whose time and place of first enunciation are as yet unknown.

Robert S. Brumbaugh is a good example of a person who regarded himself as a superior type -a ‘left-brainer’. If you read his essays, you might try to identify the ideas he adopts without evidence adduced; the extent to which he relies on imagination; on others’ untested assertions; the absence of any reference to histories of medieval and earlier art; the absence of analytical and comparative evidence in his exposition of one drawing or another. My own impression is that he had no idea how to determine whether a particular detail in the manuscript was intended to be read literally, metaphorically, symbolically, or allegorically.

His ‘blind spots’ are often the same as those informing the Friedmans’ work, and d’Imperio’s account of it.

Extreme left-brainers are comfortable with quantification, and least comfortable with matters requiring balanced judgement of qualities. They can easily compare things in pictures – “these are pictures of cats” – but are at a loss when asked, for example, to decide and explain which of the pictures best conveys ‘feline nature’ – and how the maker did that.

In my experience, as I say, it is not the natural ‘left-brainers’, nor predominantly ‘right-brain’ types who are worst at reading pre-modern pictures. It is those ‘confused’ ones who identify as left-brainers and logicians but whose logic is badly flawed and who constantly mis-interpret, and so mis-represent the products of their imagination as products of evidence-dependent logic.

Often perceptive in social situations, they make very poor analysts. In fact, if they manage to qualify, they can prove a real menace to the profession because they deceive their clients.

Being able to convince themselves that anything produced by their mind must be a product of ‘logic’, but also adept at persuasion, they persuade their clients to believe that some bit of their own historical-fantasy is a valid description of the object for whose assessment the client is paying. The hardest sentence for such types to utter is: ‘I can offer no informed comment’.

Otherwise, most people can learn to develop the skills natural to both left- and right- brain. The right-brainer is the most direct and acute in observation and more interested in learning more, the left-brainer more inclined to shy away from the uncomfortable or hitherto unfamiliar.

That may seem counter-intuitive but imagine the situation – it’s the middle of the night. The person awakes with an impression that they’ve heard a noise. The right-brain says ‘burglars’ and wants to investigate to see whether or not that is so. The left-brain says ‘Nonsense – probably the dog playing with its ball’ and wants to go back to sleep. A balanced mind might – might – say ‘It might be burglars; it might just be the dog’, then curb any impulse to go downstairs but instead pick up their phone, move into a room with a lock on the door, and notify the police. That sort of reaction is not wholly impulsive, nor wholly ‘logical’ but it is eminently reasonable.

Most people not in the grip of some theory can be taught to recognise the difference between a painting made in fifteenth-century Venice and a manuscript illumination made in thirteenth-century Constantinople. They can memorise the tokens which distinguish one saint from another in Christian art. But the ‘confused’ types won’t want to do the necessary reading; they’ll want quite complex matter reduced to bullet-point slides – everything ‘right’ and simple. I’m sure you’ve met the type. Not stupid, exactly, but not clever in the right way.

The sort of question which seems to bring their mind to a complete stop are ones requiring informed, but qualitative judgement, such as: “what inference would you take from the use of pink in a fifteenth century painting?”, or if you simply ask them to ‘read and explain’ a particular picture, they cannot do it. The fear of ‘being wrong’ – as ‘not logical’ – is overwhelming because they suppose the definition of the ‘superior’ left-brainer is ‘never wrong’. Oddly enough I’ve found that many can relate well to images of the most overtly literal propagandist sort, and are most comfortable with early twentieth century poster-art of that type.

In my experience, when the questions mentioned above are asked, such persons habitually either produce an answer at random and when asked to explain it say something like, ‘It stands to reason’ or turn towards some other person for an indication of the ‘right’ answer.

Extreme left-brainers have persistent difficulties if the aim is to understand without producing any sort of ‘answer’. It’s good training, though, because it helps break the habit of assuming any question is a ‘problem’ in need of solution.

One encounters in Voynich studies, but less often in daily work, the curious situation where a left-brainer simply presumes that the ‘right answer’ can be determined by a simple head-count. This is much what Friedman did in issuing his ‘questionnaire’ or when Voynicheros use meaningless phrases such as ‘generally accepted’ or ‘not generally accepted’ to obscure an inability to offer an informed opinion of their own. The obvious, if impolite, rejoinder is ‘Sez who?’ and the scholarly one, ‘Why?’

For a century it was ‘generally accepted’ that the work was an autograph written by Roger Bacon. In 2011, promotion of ‘seventeenth-century Prague’ theory had seen the manuscript’s dating ‘generally accepted’ as sixteenth or seventeenth century and its subject ‘generally accepted’ as about pharmacy and alchemy. None of it was a result of consensus among formally qualified specialists, and dissenters’ views were considered outliers. Until the radiocarbon dating confirmed the informed consensus reported decades earlier by Kraus’ agent.

Truth-by-numbers may seem ‘democratic’ but it’s rubbish when the numbers are a random collection of persons, persons repeating untested ideas, and the subject is a medieval manuscript.

One of the questions which, over the years, has produced many interesting and illuminating answers as (non-Voynich) students were being encouraged develop both left- and right- brain skills, may also interest some present readers as something to mull over:

“Would you describe the doctrine of papal infallibility as the product of left-brain or of right-brain thinking?”

Hint: if your first instinct is to turn towards some other person and try to get ‘the answer’ from them, consider yourself one of the ‘confused’. If your first instinct is to learn as much as you can about the history of arguments about papal infallibility before saying anything, your right-brain skills are probably well developed. If your first instinct is to ask, ‘What has papal infallibility got to do with  pictures?’ then you’re probably a left-brainer with a lot of reading ahead of you.


Voynich ‘ciphertext’ attracts left-brainers.

When Wilfrid Voynich found the manuscript and realised he could read neither the written nor the pictorial text, he arbitrarily defined the written text as a ‘ciphertext’ just as he arbitrarily assigned the whole work to a single author, imagining ‘logically’ the imagined author of this imagined ciphertext must be Roger Bacon, and when he arrived in America, he tried first to promote the ‘ciphertext’ as potentially valuable for the military.

The result was that Wilfrid became a person of interest, as possible subversive, and a file was opened by the BOI, precursor to the FBI. That response, by the way, is a nice example of how logic may operate without evidence, and unchecked by reason.

So Wilfrid then changed tack and began emphasising the ‘Roger Bacon, scientific genius’ line, as you see from his talk in 1921.

But in a sense, it was too late.

Cryptography and military matters in general thereafter provided, with computer programmers, most of those interested in the manuscript, and such professions tend to attract ‘left-brainers’. While I’d certainly not deny that cryptographers and mathematicians are capable of imaginative leaps, they tend to be uncomfortable with situations where a question simply doesn’t have any yes/no ‘answer’ and the value of an opinion is the range and quality of an individual’s understanding.

This is why, I think, Friedman imagined that the Voynich text could be approached as contemporary ciphers were. He presumed a consistent orthography, an ‘official’ grammar, and that the aim of any enciphered text was to send a disguised but neat, monolingual, ‘plain text’ to persons at a distance from the person who composed a message.

None of those assumptions – including the assumption of encipherment – had been a conclusion from solid historical evidence, but it explains why Friedman saw nothing ridiculous about presenting Erwin Panofsky with a pre-determined set of seventeen ‘questions’, the aim of which was to collate all such answers as if the number of ‘yeas’ and ‘nays’ could decide whether an opinion was or wasn’t right.

I think it also explains why Friedman was unable to give Panofsky’s first opinion (given to the Voynichs via Anne Nill) the weight it deserved. He didn’t know how to decide relative weight due one ‘expert’ opinion over another.

For more than a century, the idea of the Voynich text as a ‘ciphertext’ became one of the study’s ‘doctrines’ and as far as I can determine no-one formally qualified to analyse images had contributed to the study at all between 1932 and 2009. It was a ‘left-brain’ field.

By 2009, it had become another “Voynich meme” that “until the written text is deciphered, any comment about the drawings is subjective”.

Like so many other Voynich memes, it’s rubbish, of course, but a perfect example of ‘left-brain’ irrationality.

First, as a moment’s thought will show, every major city in the world has art galleries and museums filled with items that were not produced and appreciated by means of any explanatory screed, and secondly because the implicit, and unrecognised ‘given’ behind that dictum is that we may impose the habits of modern western art on these pre-modern drawings.

It’s not unreasonable to approach a piece of modern art with the expectation that it might be described by one of just two categories namely, ‘portraits of things’, or “subjective expression of an artist’s worldview”. In the first case, the artist is imagined ‘drawing what s/he sees’ and this is supposed to be accessible to every viewer. In the second case, the viewer supposes that they can only access meaning by resorting to their own emotional responses and/or reading a written description.

But just as Newbold was wrong to suppose the medieval pharmacy like an early-twentieth century American drugstore, so this notion of image-making isn’t appropriate to the pre-modern world or to non-European tradition.

As well as ‘portraits’ of things (pictures ‘of’), and individual ‘expressions of ideas’ there were ‘pictures about’ and they were ‘about’ the things known and shared by the first maker of an image and his intended audience. In a different time and a very different environment.

Which is why the habit of ‘matching pictures’ by defining all pictures in terms of a single object in them is so prevalent a habit in modern Voynich writings, and so very inappropriate without the provision of historical and technical explanations of precisely how and why the images juxtaposed should be considered ‘alike’.

Here’s a concrete example of why simplistic ‘picture matching’ is useless to explain any image included in such composites.

Quite apart from a need to recognise and describe stylistics – which tell the informed viewer that the pictures (from left to right) are Japanese, Egyptian, and German – and without the background studies of history which will allow the analyst to offer an informed opinion that the first is probably seventeenth-century AD, the second probably second millennium BC and the third, fifteenth-century AD, the iconological analyst must be able to key those matters to the most vital issue – intended significance.

That sort of work needs both left-brain and right-brain skills, in coordination.

Readers should be alert to alleged ‘comparisons’ relying on the viewer to invent a ‘logical’ link to justify side-by-side juxtapositions and be cautious about accepting tacit arguments from such asserted ‘similarity’.

It is not unreasonable to ask a theorist presenting such efforts at silent persuasion: ‘Why do you think so?’ ‘Where’s the evidence?’ ‘What are your precedents’? ‘Explain your thinking’ – such questions are ones that professionals expect any client or any fellow to ask, and which is addressed, as a matter of routine, in any written report.

What happens in Voynich studies, all too often, would be unacceptable in any other context.

If a person who inherited a picture comes asking for its explanation, you don’t say ‘its a man on a horse’, lay it beside a picture of a mounted Napoleon, and tacitly invite the client to infer that their picture should be dated to the nineteenth century and supposed French. But the equivalent is constantly done in Voynich studies and, by long usage, that appalling habit has come to be regarded as normal methodology in this study.

In the next post I’ll reproduce some of the earliest contributions to discussion of the ‘swallowtail merlons’. I’d like readers to consider what ‘givens’ are assumed, what ‘blind spots’ they can identify, what basic errors of reasoning are evident, and whether they think the topic deserves a thorough re-consideration.