"The day eye and the night eye."  From The Children's Newspaper, 1942.

From Exploring the World of Science by Charles Lake, 1939.

From My Do and Learn Book to Accompany On Cherry Street by Russell & Ousley, 1948.

From Starting Points in Language Arts, Level 6, Teacher's Guide, 1978.

"Are there still nights"  Still days?"  From Dark Shadows episode 416.

From the Massachusetts Society for the Prevention of Cruelty to Animals' Our Dumb Animals magazine, 1894.

From The Story Book of Nick and Dick by Arthur Gates.

"A note about the earth.  The earth is the preserve of day and night."  From the Innis Herald, 1995.

From The Improvement Era, 1970.

"Oh dear!  Day and night!"  From Phil May's Illustrated Winter Annual, 1902.

From Der Bärenspiegel, 1935.

Tomorrow comes early.  From Unknown magazine, 1942.

From Together, 1958.

It's true -- night and day we talk about night and day.  And the difference between what we say about night as opposed to day ... well, it's like night and day.  From The Film Daily, 1946.

"They're having Night and Day at the same time in 250 cities!"  From The Film Daily, 1946.

INSTRUCTIONS: Change night to day. (Original postcard scans via UpNorthMemories).

Iowa State's 1927 yearbook.

The man in the moon wears a hat and cape of darkness.  From Nebelspalter, 1884.

From The Judge, 1921.

INSTRUCTIONS: Click to bring on the night.