50/22.1 This alphanumeric code likely represents a library shelfmark or accession number used for cataloging.

HERALD OF SCIENCE NO. 102

This refers to Bern Dibner’s "Heralds of Science" (1955), a famous selection of 200 foundational books that shaped the history of science and technology. Tartaglia’s work is listed as the 102nd entry.

A red and white compass rose with sixteen points is shown, with a red lily original: "fleur-de-lis" marking the north point.

BURNDY

LIBRARY

Chartered in 1941

GIFT OF

BERN DIBNER

### The Dibner Library ### of the History of ### Science and Technology

SMITHSONIAN INSTITUTION LIBRARIES

A woodcut-style illustration depicts a kneeling figure, reminiscent of the titan Atlas, supporting a large, detailed armillary sphere—a model of the celestial objects—on his head and shoulders. The rings of the sphere are inscribed with astronomical terms: "Colure line" original: "Colurus", "South" original: "Meridies", "Equinoctial line" original: "Aequinoctialis", "Zodiac" original: "Zodiacus", and "Horizon."