Ernst Haeckel’s Sublime Drawings of Flora and Fauna: The Beautiful Scientific Drawings That Influenced Europe’s Art Nouveau Movement (1889)

“Haeckel published 100 fabulous prints beginning in 1889 in a series of ten books called Kunstformen der Natur (“Art Forms in Nature”)…”

https://www.openculture.com/2017/11/ernst-haeckels-sublime-drawings-of-flora-and-fauna.html