De secretis nature siue de quinta essentia libellus
Contributors: Johannes, de Rupescissa, ca. 1300-ca. 1365; Grimm, Sigmund, fl. 1517-1527, printer; Wirsung, Marx, fl. 1517-1527, printer
Publisher: Sigmund Grimm and Marx Wirsung
Published: 1518
Place of publication: Excusum August[a]e Vindelicoru[m]
Language: lat
Number of pages: 52
Subjects: Alchemy; Early works to 1800; Medieval Medicine
Work titles: De secretis naturae
Notes: De secretis naturae is a Lullian version of De consideratione quintae essentiae by Johannes de Rupescissa.

Imprint from colophon; date expressed in Latin words.

Printing assigned to S. Grimm and M. Wirsung by Proctor.

Signatures: a⁶ b-f⁴.

Title within woodcut border.

Proctor, pt. II, sec. 1, 10874.

Yale. Alchemy, 8.

Rogent & Duràn. Bibliografia de les impressions Lul.lianes, 71.