Dryander was among the first to make illustrations after his own dissections. His unfinished guide to dissection entitled Anatomiae, expanded from the Anatomia published the previous year, is one of the most important of the pre-Vesalian anatomies. Choulant ascribes the woodcuts to the school of Hans Brosamer (Frankfurt) while Herrlinger suggests that they may come from the Basel school. This book includes the first printing of two other short works on dissection: Gabriele Zerbi's Anatomia infantis and Copho’s Anatomia porci.

One of the most important of the early works on comparative anatomy. It includes the Anatomia porci, attributed to Copho of Salerno. Severinus dissected many animals and was convinced that the microscope would throw light on comparative anatomy. Digital facsimile from the Internet Archive at this link.