John Fothergill, an English physician & patron of several Quaker naturalists including Sydney Parkinson & William Bartram (whose painting of a Franklin tree is shown on the right), is 's

https://t.co/uIm5dJJotL

3 9

John Edward Gray, 's Keeper of who helped Charles conduct research on is 's

(The image on the right is from Darwin's 1854 book on the subclass Cirripedia.)

https://t.co/QQ3UZQRsLZ

3 11

Edward Donovan, Anglo-Irish naturalist and illustrator, is ’s

These engravings are from his Epitome of the Natural History of the of China (1798).

https://t.co/Q4LBEwP1ti

7 12

Deborah Passmore, American botanical illustrator who became the head artist in 's division, is 's

https://t.co/W4ueVACjXH


5 23

Christian Andreas the Austrian physicist who described the apparent change in a wave's frequency when its source was in motion relative to an observer, is 's

https://t.co/CcoLU3xtdv

0 6

John Barrow, the Second Secretary of the Admiralty who organized numerous expeditions to search for the Northwest Passage, is 's

https://t.co/tXYNDFxpIz

3 7

Edme-François Jomard, the French topographical engineer and cartographer who oversaw the publication of the Description de l’Égypte, is 's

https://t.co/vkctUdsaZp

2 6

Leslie Matthew Ward, a British portraitist who created over 1,300 caricatures for magazine, is 's

Here we see two of his subjects, industrialist Henry Bessemer & anatomist Richard Owen.

https://t.co/WFihf5P8kT

2 6

Robert Fulton, American inventor who built the 1st commercially successful steamboat, was 's

(Fulton also built a prototype submarine called the featured in my recent exhibit.)

https://t.co/SNK7ZN9w4N

1 5

Alexander von Humboldt, German naturalist and explorer known for his emphasis on measurement and record keeping, is 's

https://t.co/dR2GSVnVtG


4 19

Anders Sparrman, Swedish naturalist and student of Linnaeus, is 's

These ornithological illustrations are from ' copy of Sparrman's Museum carlsonianum (1786-9).

https://t.co/LahjzbY9M1


0 10

The microscopic world is beautiful. Just look at all those Perty pictures!

Josef Anton Maximilian Perty, German naturalist who published an illustrated treatise on in 1852, is 's

https://t.co/lL28sRYIb7

2 16

A few of the inhabitants of "The Antediluvian World," as portrayed by John Emslie, English illustrator and engraver, is 's

https://t.co/ra2xoeP6fX

3 14

William Henry Smith, English bookseller who somehow became First Lord of the Admiralty and likely inspired the character of Sir Joseph Porter in is 's

https://t.co/Hpp0Tc2p1A


1 5

André Tacquet, a Flemish mathematician and Jesuit priest whose books are filled with emblematic imagery, is 's

https://t.co/Nqm1VWwTQN


0 4

Giovanni Domenico Cassini, Italian-French astronomer and namesake of a division in the rings of (first illustrated in the 1675 issue of Phil. Trans. of shown below), is 's

https://t.co/o3MmjMKKcW

0 3

Charles Willson Peale was talking about before it was cool.

So far as I know, he is also the only person to be the subject of two posts in a single month.

Further details: https://t.co/zLA4rLQbSY

1 8

Elizabeth Gwillim, English artist who created these paintings of a great cormorant (L) and purple heron (R), is 's

https://t.co/D4oyZ6DefP

15 23

Claude-Louis Berthollet, a French was born in 1748. Berthollet accompanied during his invasion of Egypt. Learn more about Berthollet in his profile: https://t.co/2rwprb4dqu

1 4

Claude-Louis Berthollet, French chemist who accompanied during his invasion of Egypt, is 's

https://t.co/q20ELxq0KD

1 3