ASTROLOGY

IN APHORISMS aphorisms: concise statements of principles, rules, or observations, designed here as a quick-reference guide for practicing astrologers

Ptolemy (c. 100–170 AD) was the author of the Tetrabiblos, the foundational text of Western astrology; Hermes refers to Hermes Trismegistus, the legendary Hellenistic figure to whom many foundational esoteric texts were attributed.

Louis de Rigiis (Ludovicus de Rigiis) was a 15th-century astrologer known for his work on aphorisms and the "Aphorismi Astrologici."

Almansor likely refers to Yahya ibn Abi Mansur (died c. 830), a prominent astronomer in the court of the Abbasid Caliph Al-Ma'mun. Gerolamo Cardano (1501–1576) was a famous Italian polymath, physician, and astrologer.

A decorative typographical woodcut ornament centered on the page, featuring symmetrical scrolling foliage and floral motifs that taper to a point at the bottom.

original: "VLMAE, MDCXLI"

original: "Apud Ludovicum Lanouü." The Latin "Apud" indicates the publisher's house or shop.