A rainbow intersected by a white arc.  From our review of the Handbook of Unusual Natural Phenomena by William R. Corliss (1977).

From Mercury, 1920.

From The Book of Life: Vonisa by Sidartha, 1885.

"Our evil will is momentous within ourselves, and it works its way outside us; it may be in the vitiation that breeds evil acts, and it may also be in the self-abhorrence that stings us into better striving."  From The Essentials of the English Sentence by Elias H. MacEwan, 1900.

From Everyday Foods by Harris & Lacey, 1927.

From Mercury, 1930.

From Mercury, 1919.

From Mysteria, 1913.

From Modern English Writing by Douglas Bement, 1937.

From Chatterbox, 1876.

From our review of the Handbook of Unusual Natural Phenomena by William R. Corliss (1977).

From our review of the Handbook of Unusual Natural Phenomena by William R. Corliss (1977).

From The Instructor, 1953.

From Cupid's Book, 1929.

From The Book of Life: Vonisa by Sidartha, 1885.

A mixed rainbow-cloudbow.  From our review of the Handbook of Unusual Natural Phenomena by William R. Corliss (1977).

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

From The Children's Newspaper, 1923.

From Grammar of the English Sentence by Jonathan Rigdon, 1903.

From Mysteria, 1913.