[24 leaves] ; 4to

Colophon: Impressi Andaeas hoc opus, cui Francis nomen / Tradidit; at civis Ferrariensis ego: / Herculeo felix Ferraria tuta manebat / Numine, perfectus cum liber iste fuit, M.CCC.LXXII.

Gherardo, da Sabbioneta, 13th cent. Theorica Planetarum. 1472.

Printed with Gherardo da Sabbioneta's Theorica planetarum, that occupies 16 additional unnumbered leaves.

[The Theorica planetarum is usually considered to be by the Cremona astrologer Gherardo da Sabbioneta, although some authorities ascribe it to the Gerardus Cremonensis who died 1187. Cf. Dictionary of Scientific Biography, suppl., p. 189 for a summary of the evidence.]