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 
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 
Human’s Brain illustrated by Charles Dessalines D' Orbigny (1806-1876). Digitally enhanced from our own 1892 edition of… Free Image from public domain license