Popular Lectures on Human Nature, a book cover illustration by an unknown artist referencing Prof. W.G Alexander. Original… Free Image from public domain license 
Korpers Des Menschen (1898), an antique lithograph of an anatomy chart of a human body showcasing its internal system.… Free Image from public domain license 
Die Blutgefasse Des Menschen (1898), an antique lithograph of the human blood vessels and cardiovascular system. Digitally… Free Image from public domain license 
Myology and disposition of the viscera illustrated by Charles Dessalines D' Orbigny (1806-1876). Digitally enhanced from our… Free Image from public domain license