Adolf Schmidt’s *Atlas der Diatomaceenkunde* (1890)

A 19th-century catalogue dedicated to showcasing diatoms (a type of unicellular microalgae) in all their intricate glory.

Adolf Schmidt’s *Atlas der Diatomaceenkunde* (1890)

A 19th-century catalogue dedicated to showcasing diatoms (a type of unicellular microalgae) in all their intricate glory.