Lot Essay
Münster, best known for his Cosmographia Universalis (1544), was not only a geographer but a mathematician and Hebraist. In this work on dialling, or gnomonics, he reviewed previous literature on this ancient craft, incorporated recent innovations allowing for greater accuracy, and presented the theory, construction, and employment of both sun dials and his own invention of the moon dial. The first German edition was published under the same imprint in 1537.