V. F. Hopper

Medieval Number Symbolism. Its Sources, Meaning, and Influence on Thought and Expression.

V. F. Hopper, 1939 .

Medieval Number Symbolism, Its Sources, Meaning and Influence on Thought and Expression

W. Jaffe, V. F. Hopper, 1939 .

Spenser's “House of Temperance”

V. F. Hopper, 1940, PMLA/Publications of the Modern Language Association of America.