"A transit of Mercury over the Sun's disk," from The Columbian Magazine, 1788.

"Psychic Causes," a slide from a lecture entitled "Psychic Photography From A New Angle" by C. P. MacCarthy, 1834.

"And the eyes of the sleepers waxed deadly and chill."  From A Practical Grammar by Stephen Watkins Clark, 1847.

You've heard of someone being "bird brained," but here's the exact location of the avian part of the brain (and yes, it's egg-shaped), from Psychology and the School by Edward Herbert Cameron, 1921.

You've heard of a palmist.  You've heard of a psalmist.  Here's where they overlap -- a woodcut diagram of the Guidonian hand, a mnemonic used for teaching music, 1492.  

Here's a precursor to the animated busts in Disneyland's Haunted Mansion, from Thomas Gray's "Elegy Written in a Country Churchyard," diagrammed in Stephen Watkins Clark's A Practical Grammar, 1864.

The gestation of the deities, from Étude Historique sur les Organes Génitaux de la Femme by Gabriel Peillon, 1891.

From Revue de l'Art Chrétien, 1857.

"Something about hypnagogic hallucinations" from An Experimental Study of the Eye-Voice Span in Reading by Guy T. Buswell, 1920.

From Manual of Social Science by Genry Charles Carey, 1879.

From Fundamental Character Analysis by Harlan Tarbell, John Rolle and Carl Loeb, 1922.

"The invisible," from an 1849 advertisement.

Here's a precursor to retrieving data stored in "the cloud."  From Applied Biophysics by Norman Howard-Jones, 1949.

From The Management of Men by Edward Lyman Munson, 1921.

"'Time slept on flowers and lent his glass to hope.' —Sigourney."  From A Practical Grammar by Stephen Watkins Clark, 1847.