Ma'aseh Toviyyah

The work is divided into eight parts: (1) theology; (2) astronomy; (3) medicine; (4) hygiene; (5) Syphilitic maladies; (6) botany; (7) cosmography; and (8) an essay on the four elements. The most important is the third part, which contains an illustration showing a human body and a house side by side and comparing the members of the former to the parts of the latter (see illustration).

In part 2 are found an astrolabe and illustrations of astronomical and mathematical instruments. Inserted between parts 6 and 7 is Turkish-Latin-Spanish dictionary; and prefixed to the work is a poem by Solomon Conegliano.

•  This article incorporates text from a publication now in the public domain: Singer, Isidore; et al., eds. (1901–1906). "Cohn, Tobias". The Jewish Encyclopedia. New York: Funk & Wagnalls.