Pierre Lyonet - Scientist of the Day

Pierre Lyonet, a French illustrator and microscopist, was born July 22, 1708. Lyonet did most of the drawings for Abraham Trembley’s classic Mémoires pour servir à l’histoire d’un genre de polypes d’eau douce (Memoir on fresh-water polyps, 1744), which revealed that tiny Hydra, the miniature medusa-like denizens of swamp water, could regenerate all their missing parts after being cut into pieces (see first image above).

Having earned his spurs at Trembley’s microscope and the drafting table, Lyonet set off on his own, and in 1762 he published Traité anatomique de la chenille qui ronge le bois de saule (Anatomical treatise on the willow caterpillar), which, in numerous engravings, showed every single muscle, nerve, organ, and duct of what we now call the goat-moth caterpillar. The drawings were so detailed that some critics doubted that that such precise observation was possible. In fact, the details were real. Lyonet made his observations with a single-lens microscope of his own design, with the lens suspended on the end of a tiny segmented arm which could be easily moved around over the dissecting table, an integral part of the microscope. In our 2009 exhibition, Singular Beauty, we displayed several single-lens dissecting microscopes, and we also displayed Lyonet’s book, which has an illustration of his microscope (second image), as well as many exquisite engravings of caterpillar innards (third image).

Dr. William B. Ashworth, Jr., Consultant for the History of Science, Linda Hall Library and Associate Professor, Department of History, University of Missouri-Kansas City


Scientific illustration.
Copic 0.3 on Canson 160g.


Left: Index and little finger amputation
Right: Middle finger amputation


dan’s at work so i’m drawing velociraptors… i’m gonna try and colour this now haha ha


Engraving by Catherine or Elisabeth Haussard, from Mémoires pour servir à l’histoire des insectes, by René-Antoine Ferchault de Reaumur::Mount Holyoke Archives & Special Collections::1734

Reaumur’s observations of wasps chewing and spitting out wood to build their papery nests eventually led to the idea of making paper from wood pulp.


Plate from ‘Lepidoptera Indica’ by F. Moore…

Published 1890 by Lovell, Reeve & Co                                           London


Female Blue Imperial (Ticherra acte, Theclinae, Lycaenidae)

Female Blue Imperial (Ticherra acte, Theclinae, Lycaenidae)

by Sinobug (itchydogimages) on Flickr.
Pu’er, Yunnan, China

See more Chinese butterflies on my Flickr site HERE…..

name ➔ Pellinore 
birth place ➔ New Jerusalem, New England
where do i live ➔ England, unfortunately 
hair color ➔ dark, dark brown or black
eye color ➔ black
birthday ➔ September 14th
gender ➔ male
lefty or righty ➔ right handed
single or taken? ➔ painfully single
happy? ➔more so than usually and thats always good 
do you believe in love at first sight ➔ absolutely not
have you ever broken someone’s heart ➔ no
are you afraid of commitments ➔ no
have you hugged someone within the last week? ➔ no 
have you ever had a secret admirer ➔ no
have you ever broken your own heart? ➔ Yes, I physically tore into my chest and ripped my own heart in two, it was extremely traumatic
do you usually spend valentine’s day alone? ➔ yes
short or long-term relationships? ➔ long term


love or lust ➔ love
lemonade or iced tea ➔ I dont like iced tea but I guess any form of tea has some merit
cats or dogs ➔ neither really? but I’d prefer a cat.
a few best friends or many regular friends ➔ a few best friends I guess
television or internet ➔ internet 
pepsi or coke ➔ Coke? I don’t drink it much. 
wild night out or romantic night in ➔ A healthy mixture of both. 
day or night ➔ It hardly matters when you dont leave your room. 
text or call ➔ text
make-up or au naturel? ➔ I couldn’t care less


been caught sneaking out? ➔ yes
fallen down/up the stairs? ➔ yeah 
wanted something/someone so badly it hurt? ➔ very much so
prank called a store? ➔ no
skipped school? ➔ yes but for good reasons only
wanted to disappear? ➔ Hm
spent all your money? ➔ never
met a celebrity? ➔ are scientists celebrities? 
been really ill? ➔ haha
gotten high? ➔ no I’m not particularly intrested knowing the effects of most drugs. 


smile or eyes ➔ Smile, definitely. 
light or dark hair ➔ light
shorter or taller ➔ either, but the taller I get the less likely I could fine someone taller. 
intelligence or attraction ➔ intelligence
hook-up or relationship ➔ relationships
funny and poor or rich and serious ➔ funny and poor 
mac or pc? ➔ PC 
chapstick or lipstick? ➔ chapstick
city or country? ➔ City I think
driving or walking? ➔ driving. 


last phone call? ➔ robo call
last song you listened to? ➔ same as the last time i did one of these
last thing you ate? ham sandwich 
last thing you drank? ➔ tea
last place you were? ➔ the hallway
last kiss? ➔ ive never been kissed
last picture taken? ➔ a book title so i wouldnt forget it later when i came to get it
last outfit? ➔ dirty pjs
last purchase? ➔ new socks

"Why am I always sick?" I ask, sitting in my room for days having forgotten to eat or bathe or change clothes. "A mystery of medical science." I say, being around chemicals most of the time and staring at a computer screen the rest of the time for days. "This couldn’t possibly be any of my doing"