Dryander (also known as Eichmann) studied at Paris at the same time as Vesalius. Later he became Professor of Mathematics and Medicine at the Protestant University of Marburg. He was one of the first physicians in Germany to conduct public dissections, and among the first anatomists who made illustrations after their own dissections. Anatomiæ, an expanded version of the author's Anatomia capitis humanis (Marburg 1536), was the first part of what was to be a complete illustrated anatomy. It consists of twenty full-page woodcuts, signed with the monogram GVB (perhaps a member of the Basel school of woodcut designers). Sixteen of the illustrations depict a dissection sequence of the head, starting with the removal of the scalp and cranium, the exposure of the meninges and cerebral hemispheres, the cerebellum, and finally the base of the skull. Eleven of the sixteen illustrations, one of which appears twice, were used by Dryander in his publication of the previous year, Anatomia capitis humani. They were taken from actual specimens and are realistic and precise in their detail. The remaining four illustrations are of the chest and lungs. The book also includes a brief treatise on the anatomy of the pig, traditionally attributed to Copho, an early teacher at Salerno, and a short essay by Gabriele de Zerbis, professor at Padua, on the anatomy of the fetus.