"A horror began to settle down upon him," from Cassell's, 1896.

"In the Black Valley," from a drawing by Heywood Sumner.  From Undine and Other Tales by De la Motte Fouqué, in English Illustrated, 1886.  This should also be of interest: How to Believe in Your Elf.

Here's a precursor to Elizabeth Rees' observation that "the hours overlap" (Tilting Gravity, 2012), from a Soviet greeting card.

You've heard that we're all made of stardust, but so are bicycles, sewing machines, and typewriters.  Or ... smoke coalesces into the Platonic ideals of bicycles, typewriters, and sewing machines, and the cosmos celebrates.  From Jugend, 1906.

INSTRUCTIONS: Click to make a subtle shift.

"All in the dark," from Judy, Or The London Serio-Comic Journal, 1876.

A moonlit, nervous, and short-sighted Theosophist asks, "What is that misty white thing over there?  Is it a ghost, or a Mahatma, or an Astral Body?"  From Pick Me Up, 1892.

Here's the Moon Flower from Tilton's Annual Illustrated Catalogue of Seeds, 1893.

"The night has a thousand eyes," from The Sketch, 1906.

"The Baronial Hall," from The Guernsey Magazine, 1877.

"The only way out of the dark."  A detail from a postcard, date uncertain.

"There in the dark on the bank, I began shaking."  From Pearson's, 1910.

Here's the angel of midnight field corn, from Joseph Breck's Annual Descriptive Catalogue of Seeds, 1886.

"The night watch," from Varney the Vampyre by James Malcom Rymer, 1853.

24 hours in 20 periods of night, twilight, and day.  From Diel and Seasonal Activities of Culicoides Spp. Near Yankeetown, Florida by Thomas Henry Lillie, 1985.

 From Egipto by Jorge Ebers, 1882.