Every one knew how laborious the usual Method is of attaining to Arts and Sciences; whereas by his Contrivance, the most ignorant Person at a reasonable Charge, and with a little bodily Labour, may write Books in Philosophy, Poetry, Politicks, Law, Mathematicks and Theology, without the least Assistance from Genius or Study.

The image ?http://www.jaffebros.com/lee/gulliver/faulkner/p5.gif? cannot be displayed, because it contains errors.
Gulliver's Travels:
Voyage to Laputa

Archive

January
February
March
April
May
June
July
August
October
November

2002
2003
2004
2005
2006

Search

Laputan Logic
Web

Atom Feed

Subscribe with Bloglines

Laputan Logic*
Fanciful. Preposterous. Absurd.
Archive for April 2006
Monstrous impostures of the Indian seas

#

In 1799, the Literary and Philosophical Society of Newcastle-upon-Tyne received an unusual package from Australia
"The cask containing the two specimens … reached Newcastle late in 1799, transported from quayside to the Society's rooms by a woman servant. She carried it on her head and, by mischance, the bottom of the cask gave way, dousing her with pungent spirits. But her dismay was reportedly the greater when, looking down, she saw not only the small chunky wombat, but the remains of 'a strange creature, half bird, half beast, lying at her feet'."

— Thomas Bewick
The specimens had been sent to England by John Hunter the Governor of the colony of New South Wales. His accompanying letter described his first sighting of the mysterious "half-bird half-beast".
The river was very still on the curve where the eucalyptus dips towards the water. The light shaded near late afternoon and twilight would soon darken the outline of the wooded bank and the flat landscape stretching to the horizon. Bubbles broke the surface of the water. A small brown head, its sleek furred cap glided silently in the river's flow.

As you can imagine, my esteemed colleague, I wondered what the aborigine was spearing in the lake near Hawkesbury River close to Sidney. I soon discovered the answer. A small creature fought for its life with such force that it caught its assailant with its spur and seemed to cause much pain. I have taken the liberty of posting the skin of the specimen to you for your study. It is preserved in a keg of spirits with another antipodal beast. I send it to your keeping for the Literary and Philosophical Society of Newcastle-upon-Tyne.
Bewick working from the skin went on to produce this engraving for the 1807 edition of his book A General History of Quadrupeds.


Is found in the fresh water lakes . . . about the size of a small Cat, it chiefly frequents the banks of the lakes; its bill is very similar to that of a Duck, and it probably feeds in muddy places in the same way; its eyes are very small; it has four short legs; the fore legs are shorter than those of the hind, and their webs spread considerably beyond the claws, which enables it to swim with great ease; the hind legs are also webbed, and the claws are long and sharp. They are frequently seen on the surface of the water, where they blow like a turtle: their tail is thick, short and very fat.
The same year another specimen was received at the British Museum in London and examined by George Shaw an assistant keeper at the museum and a member of the Royal Society. Shaw was astonished by the platypus (as he named it) but he also seriously wondered about its authenticity, confessing that it was "impossible not to entertain some doubts as to the genuine nature of the animal".



The original sample sent by Governor Hunter which still held at the Natural History Museum in London
Of all the Mammalia yet known it seems the most extra-ordinary in its conformation; exhibiting the perfect resemblance of the beak of a Duck engrafted on the head of a quadruped. So accurate is the similitude, that, at first view, it naturally excites the idea of some deceptive preparation by artificial means ... nor is it without the most minute and rigid examination that we can persuade ourselves of its being the real beak or snout of a quadruped.
Shaw had good reason for his initial scepticism. Although the platypus had come from an impeccable source — the governor of colony of New South Wales, himself an amateur naturalist with connections to the Royal Society — the fact remained that this animal really did look like a sewn together amalgam of various species. During this period many new and remarkable species were being discovered but the scientists needed to exercise caution because the fabrication of bizarre creatures and mythical beasts for sale to the credulous was also commonplace.

In Asia there was a long history of animal forgery going back to the Middle Ages. Even Marco Polo who crossed the Indian Ocean in the thirteenth century complained about this disreputable practice.
I may tell you moreover that when people bring home pygmies which they allege to come from India, 'tis all a lie and a cheat. For those little men, as they call them, are manufactured on this Island, and I will tell you how.

You see there is on the Island a kind of monkey which is very small, and has a face just like a man's. They take these, and pluck out all the hair except the hair of the beard and on the breast, and then they dry them and stuff them and daub them with saffron and other things until they look like men. But you see it is all a cheat; for nowhere in India nor anywhere else in the world were there ever men seen so small as these pretended pygmies. [1]

— Marco Polo, Travels Volume 2. Chapter IX. Concerning the Island of Java the Less (Sumatra)
The surgeon Robert Knox [2] who founded a school of anatomy in Edinburgh put the scientists' quandary this way
It is well known that the specimens of this extraordinary animal first brought to Europe were considered by many as impositions. They reached England by vessels which had navigated the Indian seas, a circumstance in itself sufficient to rouse the suspicions of the scientific naturalist, aware of the monstrous impostures which the artful Chinese had so frequently practised on European adventurers; in short, the scientific felt inclined to class this rare production of nature with eastern mermaids and other works of art; but these conjectures were immediately dispelled by an appeal to anatomy (emphasis added).

— Robert Knox, 1823

Chinese mermaid

As mentioned by Marco Polo, the bodies of monkeys were the most commonly used in the manufacture of these exotic beasts. Most popular amongst the sailors who bought them were "mermaids" made by stitching together a small monkey and the tail of a fish. Hundreds of these artificial abominations were taken home to Europe and it become to part of the job of naturalists evaluate and, if possible, debunk them.

Even as late as 1858, the surgeon and naturalist Francis T Buckland was asked to investigate a specimen of a "merman" on exhibition in London.
In the back parlor of the White Hart, Vinecourt, Spitalfields, high and dry upon a deal board, lay this wonderful object-hideous enough to excite the wonder of the credulous, and curious enough to afford a treat to the naturalist.

Such a thing as a merman or mermaid of course never really existed; I was therefore most anxious to examine its composition, which, by the kindness of the landlady (a remarkably civil woman), who removed tile glass which covered her treasure, I was enabled to do. The creature (a gentleman, not a lady specimen of the tribe) was from three to four feet long. The upper part of its body was composed of the head, arms and trunk of a monkey, and the lower part of a fish, which appeared to me to be a common hake; and the head was really a wonderful composition: the parchment like, hideous ears stood well forward, the skin of the nose when soft had been moulded into a decided specimen of "the snub," the forehead was wrinkled into a frown, and the mouth " grinned a ghastly grin;" the curled lips partly concealed a row of teeth which in the upper jaw were of a conical form and sharp-pointed, taken probably from the head of the hake, whose body formed the lower part of our specimen. The lower jaw contained these fish's teeth, but conspicuously in front was inserted a human incisor or front tooth, and a vacant cavity showed that there once had been a pair of them. These were probably placed there to show the "real human nature" of the monster. The head had once been covered with hair; but visitors, anxious to obtain a lock of a merman's hair, had so plucked his unfortunate wig that only a few scattered hairs remained; the relic-seekers are now, therefore, ignorantly treasuring in their cabinets hairs from the pate of an old red monkey.

The "Fejee" Mermaid–now part of the collection of the Peabody
Museum of Archaeology and Ethnology, Harvard University.

The eyes, sunk deep in the sockets, are formed of round bits of leather, with the pupils marked in black paint; and altogether the features of the merman are those of a disagreeable old man, who was trying not to laugh. There is no portrait of the merman tribe in "Bell's Anatomy of Expression," and a portrait of our Spitalfields friend ought really to find a place in the next edition.

The arms, long, shrivelled and gaunt, were placed in an easy position, as though the owner was kissing its hand to the spectator, and the soft parts having receded from the nails left them long and projecting, like a bird's claws. The chest of the monkey had hardly been big enough to hold the shoulders of the fish, so it is extended with a cage of wire, which also gives the appearance of ribs. The waist is very much larger than the chest proper; from which fact we may learn that the fashion of tight-lacing was not derived from the mermaid family.

The fish (neatly stuffed) was placed with its belly outermost, so that its back fin formed a continuation with the back of the monkey, The junction was cleverly managed, and the tail part was gracefully curved to the left, like the heraldic pictures we sometimes see on coats of arms, &c. The merman was placed on his back; but his proper position is evidently erect, for if he stood up on his tail he would have a much more imposing appearance. The history of it is, that it was bought at a sale of old furniture, &c., of a certain old Mr. Ellis, of whom all I could learn was, that "he bought and sold for the East India Company;" but whether he bought and sold tea, silk or mermaids, I could not ascertain.
Buckland critically examined this and another matching specimen and decided that both had probably produced by a London taxidermist. He was no doubt also relieved that by this time the public's interest in mermaid exotica was declining.
Mermaids were, I believe, not very uncommon exhibitions in days gone by; and they may be still seen occasionally at country fairs, &c. The good folks of England are getting every year more and more educated, and mermaids do not take so well now as formerly, when pack-horses performed tile part of railways, and horn-books composed the village library.
However, as the masterful PT Barnum amply demonstrated to him, with the right amount of marketing and showmanship there was still plenty of money to be extracted from mugs interested in mermaids.
I attended Mr. Barnum's lecture on "Humbug," and the following are my notes of what he said of his celebrated Fejee Mermaid. He defined "Humbug" as "The art of attracting attention, whether the article is good or bad;" and his mermaid story exemplifies his theory. He bought the mermaid, which was being exhibited in Watson's Coffee-house, London, for a shilling, and then he (Barnum) showed it in his museum for nothing, and yet made money. He had an elaborate and really beautiful picture painted, which he hung outside the museum; the picture represented three lovely creatures with beautiful long hair, the traditional looking-glass and comb, &c.disporting themselves in a fairy-like submarine grotto; but he did not say his mermaid was like those in the picture. Attracted by the picture and notice, "A mermaid is added to the museum, —No extra charge," thousands paid to go in, and then they saw a "hideous, shrivelled-up old mummy; and if people were not satisfied with the mermaid, they had their shilling's worth in looking at the rest of the museum." Mr. Barnum confessed that he did not pursue his studies in Natural History too far, or he might learn too much.

A drawing of PT Barnum's famous "Fejee" mermaid

More about Barnum's hoax mermaid here.

An antique postcard of a Fiji mermaid


Mermaid presumably made from a stuffed sea mammal.
A dolphin? A dugong?


Apparently "Fejee mermaids" continue to have the power to beguile even to this day.

[1] Marco Polo's pygmies - of course, in this case there's always the (very remote) possibility that the Indonesian merchants had actually been catching, stuffing and selling specimens of Homo floresiensis instead!

[2] As sidenote, Robert Knox's "appeal to anatomy" actually went quite a bit further than was usual.

Only a few years after wrting about the platypus, the good doctor became embroiled in a sensational murder trial. He had been so keen to obtain dead bodies for dissection at his anatomy school that he often used the services of grave robbers or "resurrectionists". He paid his suppliers good money and a premium for the freshest copses (no questions asked). This prompted a pair of enterprising Irishmen named of Burke and Hare to start a profitable business murdering people directly (usually vagrants or prostitutes) in order to fulfil Knox's requirements. The pair managed to commit 16 murders over a period of two years before being caught.

While Knox was never directly implicated in the murders, there is reason to think that he knew what was going on and in at least instance he attempted to obscure the evidence of one of the murders.
Rather than lying low Burke and Hare became even more careless and murdered a well known children's entertainer, James Wilson, known as 'Daft Jamie'. He had a deformed foot and was instantly recognised by paying students at Professor Knox's anatomy class. Knox strongly denied that the subject was James Wilson but immediately began his lecture by dissecting his face.
The public furore, however, that was sparked by the trial was such that he was forced to resign his post at the school that he founded and leave Edinburgh for good.

The case became known infamously as the West Point Murders and was suitably immortalised in a children's nursery rhyme.
Up the close and down the stair,
In the house with Burke and Hare.
Burke's the butcher, Hare's the thief,
Knox, the boy who buys the beef.

Burke and Hare,
Fell down the stair,
With a body in a box,
Going to Dr. Knox.
Fejee Mermaid fossils found in Canada

#

I mentioned in the comments of my post about the exotic animal forgery that the underrated evolutionist Lamarck thought that the newly discovered platypus should be given its own taxonomic category which served as the "missing link" between birds (lower) and mammals (higher). That prompted Peter to point me in the direction of an article at Nature's news site about the discovery of a 375 million year old fossil of a fish with arms. The specimen has been described as a possible "missing link" between fish and land animals.

The hybrid creature also reminded him a bit of a "Fejee mermaid". Here's the picture that accompanies the story.


Predictably the comments section of the article quickly filled up with the remarks from creationists who no doubt are very keen to "teach the controversy" to us all.

I'm sorry, I've got no more time for "respectful debates". Creationists are dullards — excruciatingly verbose dullards to boot.
Gnomon

#

Bernardus sent me through this rather neat image of the recent total eclipse as viewed from the International Space Station. It shows the moon's shadow completely blotting out light over most of eastern Turkey. More information about this image can be got here.


eclipse over Turkey

Evidentally Bernardus has so much material for his own new and very fine blog Swarf that he can afford to be sending this stuff to me. Be sure to check out his pics of the very first space launch, a nuclear sunrise and a very interesting article on Winthrop Wetherbee, translater and humanist.

By way of return, I thought I'd post some images that hopefully will appeal to him. They are images the eclipsed sun disc as projected onto the floors of various Catholic cathedrals in Italy. They were all taken during a total eclipse on the 11th of August, 1999.




S.Petronio in Bologna

Chiesa Collegiata in Novellara

Cathedral San Giorgio in Modica, Sicily

S.Maria degli Angeli in Rome

The light is passing through a gnomon in the form of a hole in the roof of the cathedral which during the course of the day traces an arc across its floor. As the seasons change the position of this arc changes and passes through specific points marked on a meridian. These points represent specific times of the year such as the Vernal Equinox, an important date because Easter is calculated as the first Sunday following the full moon that follows the equinox. It was the locking down of dates such as these that led to the reform of the Julian calendar by Pope Gregory in 1582.

The interesting aspect here is that on normal days a circle is projected on the floor and it would be easy to assume that the shape of this circle was determined by the shape of the hole in the roof. But in fact the hole is so small that it actually acts like a pinhole lens and what is projected onto the floor is really an inverted image of the sun itself. The cathedral is working like a giant pinhole camera.

These gnomons first started to be installed in cathedrals in the 16th century but they got a renewed impetus in the 17th century when Cassini, the famous Italian-French astronomer, used the one at San Petronio in Bologna to try to prove Kepler's reformulation of the Ptolemaic system. Kepler, who had always been a vocal advocate of the Copernicus' heliocentric system recognised that in its original formulation it was actually a less accurate description of the motion of the planets than was Ptolemy's. Before he hit upon the — at the time pretty left-field — idea of planets moving around in elliptical orbits, Kepler described planetary motion in terms of a Ptolemaic concept known as the equant. Where Kepler differed from Ptolemy (apart from replacing the Earth with the Sun in his system) was in the estimation of the distance of this equant. With his access to vastly superior observational data, Kepler estimated that the distance to the equant point was only half that given by Ptolemy.

While Kepler was safe from prosecution by Rome for advocating Heliocentrism [1], Italian astronomers, particularly after the recent trial and abjuration of Galileo were all the more mindful of demonstrating the orthodoxy of their beliefs. Nevertheless Kepler's Ptolemaic argument could still be used in a Geocentric framework so Cassini piously went to work with his gnomons and meridians at San Petronio in order to bring the ancient system of the Almagest [2] into line with the latest astronomical data. For an interesting summary of this work, see this essay by J. L. Heilbron (and here) which excerpts from his book The Sun in the Church: Cathedrals as Solar Observatories. For a more detailed exposition of how this related to Ptolemy and Kepler see this very helpful mathematical supplement to Heilbron's book [3].

[1] safe from prosecution - although Kepler did have to live through the harrowing experience of seeing his mother put on trial for witchcraft.
[2] "the" Almagest - of course, the "the" should be considered redundant because the "al" in Almagest already means "the" in Arabic. Oh well, it seems to be the way the [sic] hoipolloi prefer to say it.
[3] some objections to Heilbron's thesis may be found here.
Croissant

#



One more picture from the floor of San Petronio. [more]
crois·sant (krwä-säN ', kre-sänt ')

n.
A rich, crescent-shaped roll of leavened dough or puff pastry.
[French, from Old French creissant, croissant, crescent; see crescent.]

Word History:
The words croissant and crescent illustrate double borrowings, each coming into English from a different form of the same French word. In Latin the word crescere, "to grow," when applied to the moon meant "to wax," as in the phrase luna crescens, "waxing moon." [...]

Croissant
is not an English development but rather a borrowing of the Modern French descendant of Old French croissant. It is first recorded in English in 1899. French croissant was used to translate German Hörnchen, the name given by the Viennese to this pastry, which was first baked in 1689 to commemorate the raising of the siege of Vienna by the Turks, whose symbol was the crescent.

— The American Heritage Dictionary of the English Language
Or was it the attack on Budapest? Anyway, for more on the lunar crescent see this post on hilal spotting.

Bernardus has also posted a nice picture of a partial eclipse as seen projected through a nail hole in a fence.

The picture was taken at a barbeque in Melbourne during a partial eclipse in on the 12th of December 2004. Apparently the crescent was first noticed by a four year old at the party.
Sometimes extinction just can't happen soon enough

#


Nightmarish seven foot chicken-monster found fossilised in Utah.
(thanks Pete)
Hardys on the move

#

Bloggish to be sure but at least it's something to keep this site ticking over while I get some work done.



The above picture compares the distributions of the Hardy surname in Britain for the years 1881 and 1998. It was made using an online utility at the University College London website called the Surname Profiler. Why not try it out on your own surname?

Hardy is one of those Germanic invader names, Hardy by name, hardy by nature etc. Although there are now Hardy families scattered right around the globe from the United States and Canada to Australia and New Zealand, it's remarkable to see how comparatively little diffusion has occurred within the UK itself over the past century.

I'm not sure what I'm expecting, people just don't move about as much as we'd like to think, I suppose. Expressed more rigourously, the rate of growth around the family nucleus is generally more likely to exceed the rate of diffusion to other areas. It would be interesting to see how this pattern played out in the colonies where social and geographical mobility was (presumably) greater.

The other thing is I'm not at all certain whether my particular family is even related to these English Hardys. That's because our branch was originally Irish Catholic. In Ulster there are apparently plenty of English surnames amongst Catholics, presumably evidence of some early inter-sectarian marriage. I'm not sure which part of Ireland our lot actually came from — probably not Ulster. This site reckons that the Irish Hardys are a different family altogether, one that had anglicised its old Celtic name, MacGiolla Deacair, firstly to the tongue-twisting Macgilledogher before giving up and going for Hardy. Deacair means "hard" apparently, or difficult or surly. Kind of goes with the territory, let's not forget the Hardy family anthem.

Anyway, the only thing I can be sure about, whether English or Irish, is that I'm almost certainly a descendent of Charlemagne and quite possibly of Queen Nefertiti as well. More naming fun here and here.

Update: In a similar vein, Regions of Mind has an interesting treatment of the distribution of religious denominations within the United States.
Titan revisited

#


Descending to Titan. View to the West.

Interest in Saturn's moon Titan appears to have dried up a bit like its famous "oceans" and the excitement now seems to have shifted to the icy moon, Enceladus. Still, those descent images when they first started to come through in late 04 and early 05 were certainly tantalising even if they were somewhat blurry and ill-defined [1].

The Lunar and Planetary Lab at the University of Arizona was busy last year removing artifacts and compositing mosaics of the collected images and they published them in Nature. I hadn't heard much in the news since then so I was curious to know whether there had been any progress in the image processing.

Visiting their website, I noticed that they had recently released a video which reconstructs the probe's descent. The result is pretty nice although its also pretty huge with a file size weighing in at 88MB. If the prospect of downloading such a thing sounds daunting, I've made this 1.1MB highly compressed excerpt which should give you a sense of what it's like.


3D view of the reconstructed Titan surface. The "rocks" in this picture are actually lumps of ice.

Also, as is my wont, I took the opportunity to synthesize this 3D image (above) by sampling two frames from the video. To view the 3D effect you'll need to use the cross-eye technique. As usual all caveats apply, if you happen to break anything while looking at this image then you own both halves.

[1] descent pictures - be sure to read commenter Tim May's take on the Titan descent as it happened. It's great stuff.
Sightings

#


Off my starboard bow, Bernardus has a great post about the first sightings of the coast of Terra Australis by European explorers. Inspired by the mysterious names Luca Antara, which was given to an island south-east of Java by the Portuguese (thought now to be Melville and Bathurst islands just off the north coast of Australia) he found an interesting quote by Captain James Cook who had questioned the Maoris of New Zealand about rumours of a large country off to their west which they called Ulimaroa.

Ulimaroa has since inspired the name of a mansion on St Kilda road in Melbourne (now home of the Australian and New Zealand College of Anaesthetists), a steamship and even this divine form of insanity.
Folates, Fibre and Fibonacci

#


Broccoli Romanesco - a Fibonacci fractal

Update (adapted from a comment below): I came across this image after launching into my now familiar goldenratio-bollocks [1] rant over at Moon's interesting and eclectic blog.

The post was, innocently enough, about the Fibonacci sequence a remarkable mathemical series that crops up with suprisingly regularity in many living systems. Its properties ensure that seeds are packed with maximum efficiency, it also appears in the number of petals of a flower and the placement of leaves around a stem. The latter distribution ensures that all leaves receive the maximum amount of sunlight. It is a formula that connects the notions of beauty and efficiency.


Well, that's of course all very well but all it really took to set me off was the inevitable appearance of the much beloved shell of the Nautilus pompilius. No discussion of the relationship between the Fibonacci series and the natural world ever seems complete without making reference to this beautiful creature. The problem is that it's all just bollocks.



Take for example this subdividing of a Golden Rectangle overlaid on top of this image of the shell. The idea is that you can produce a spiral and that matches the shell's one and this is supposed to say something deep about shell spirals and the Golden Ratio (and therefore the Fibonacci sequence which is intimately connected with it).



But, as a close examination will show, the spiral on the shell does not actually correspond to the Golden spiral. In fact, it's not even close. The spirals look similar because they are both examples of a class of mathemtical curves known as equiangular or logarithmic spirals. These curves are very common in nature and especially in seashells because their constant angle permits the creature living inside it to grow at a constant rate. My point here is that while the Nautilus and the Golden spiral are both equiangular spirals, they curve at a different rates and so it is incorrect to say that the Golden ratio (or the Fibonacci sequence) is involved [2].

Given that the Nautilus is an endangered species, I thought that at least there's a small hope that if more people appreciated this fact then perhaps a few fewer would be sawn open and sold over the internet for $15.95. Of course the reality is that they are very pretty shells anyway, and logarithmic spirals are mathematically appealing in their own right. Nautilus shells even have a fractal dimension so I don't really hold out all that much hope.

More articles on the Golden Ratio linked here.

[1] bollocks - the *-bollocks meme was, I believe, first started by Daniel Davies (d-squared) over at Crooked Timber when he coined the term Globollocks as a method for rating breathless and/or mendacious “Globalisation” pieces from neo-liberal commentators. He later extended the formulation so as to state that, to paraphase Arthur C Clarke, "any sufficiently advanced punditry is indistinguishable from bollocks".

The meme has since be put to good use by Jamie K at Blood & Treasure who has coined the term Chinabollocks to describe breathless media commentry mystifying the ancient wisdom of the Chinese nation. Classic quote: "Has anyone ever fought an actual military campaign in accordance with the doctrines of Sun Tzu? ... [I]t's in occasional vogue with MBA students, and [gets] eagerly thumbed through by middle management meatballs. So, then, officially and by definition, it's bollocks."

[2] D'Arcy Thompson is sometimes given the blame for connecting the Nautilus with the Golden Ratio. In reality he said nothing of the kind. In his famous book On Growth and Form he merely noted that its shell had a logarithmic spiral which he then explained in biological terms. My Canto edition, however, does show the spiral of the Nautilus shell on its front cover.