Definitions from Smith's Illustrated Astronomy by Asa Smith - 1849/1850

The Seasons from Smith's Illustrated Astronomy by Asa Smith - 1850

Refraction, parallax, light, heat from Smith's Illustrated Astronomy by Asa Smith - 1850

Centrifugal, Centripetal Force from Smith's Illustrated Astronomy by Asa Smith - 1850

Signs of the Zodiac from Smith's Illustrated Astronomy by Asa Smith - 1850

Eclipses from Smith's Illustrated Astronomy by Asa Smith - 1850

Greatest Number of Eclipses in one Year from Smith's Illustrated Astronomy by Asa Smith - 1850

The Flight into Egypt by Jean-Francois Millet - 1864

Skeletons Fighting Over a Pickled Herring by James Ensor - 1891

Opening Our Eyes from Smith's Illustrated Astronomy by Asa Smith - 1850

Elephant Act from A Museum of Wonders, 1894.

Italian Hand Gestures, The Evil Eye - 1895

“Will The Comet Strike the Earth?” - The Great Comet, Now Rapidly Approaching. Will it Strike the Earth - 1857

Plate 16. The More Remarkable Comets, A Popular Handbook and Atlas of Astronomy - 1891

The Cats’ Rendezvous by Édouard Manet - 1868

The Sea Monk (Umi Bozu) Utagawa Kuniyoshi (Japanese, 1798-1861) (Artist) Kojima of Horiecho (Publisher) ca. 1845-1846 (late Edo)

Chromatic Circle by Paul Signac - 1888

The Cat’s-Paw, Any Thing to Get Chestnuts by Thomas Nast - July 18, 1892

The Alarm by Félix Vallotton - 1895

Bismarck, from Les Génies de la Mort by Edmond Guillaume - 1870

Wilhelm I, King of Prussia, from Les Génies de la Mort by Edmond Guillaume - 1870

The Milliner by Félix Vallotton - 1894

Chromatic Circle by Paul Signac - 1888