Germany

The Institute posesses historical photographs of histological brain slices and also wet specimens made by Friedrich Arnold (1803-1890), who was chair of the Heidelberg Institut from 1852 to 1873. He first described the otic ganglion.

In addition, there is a phrenology skull made of plaster which shows on one side the theory of Franz Joseph Gall (1758-1828), on the other side the idea which Johann Gaspar Spurzheimer (1776-1832) developed.