Science Art: Tab X from Ueber den Pollen by Carl Julius Fritzsche, 1837.

From Pollen Up Close: http://publicdomainreview.org/collections/pollen-up-close-1837/

Where plants come from. (And hay fever.) These are as seen through a pretty powerful microscope – magnified 500 times – and drawn by a German pharmacist and chemist living in St. Petersburg.

Unexpected geometries.

From the Public Domain Review.