cil PROCEEDINGS OF THE 
the students of the University ; and in the summer of 1804 he 
delivered his first course of lectures on physiology, comparative 
osteology, and the cranioscopy of Dr. Gall. 
Finding, however, that his own knowledge was still very defective, 
he again repaired,in the autumn, to Wiirzburg, where, under Hessel- 
bach, he occupied himself principally in the dissection of the nervous 
system, attending at the same time Schelling’s Lectures on Natur- 
Philosophie, in which for a short time he hoped to find some new 
basis for Natural History, and more especially for Medicine. But 
inquiries of this transcendental nature seem always to have been 
foreign to his eminently practical and realistic mind, and thirty years 
afterwards he describes the only effect upon him of Schelling’s lucu- 
brations in these words :—‘“ By his brilliant but fantastic views of 
the physical world, that great philosopher had himself removed from 
me all temptation to abandon the road of empirical research and 
observation.” 
Inspired by an ardent desire to enter on this road, he determined 
to proceed to Paris to consult the great collections there, and to 
benefit by the teaching of the great men under whom they were 
placed. 
In Paris, Tiedemann laboured assiduously in the Jardin des Plantes 
and the Muséum, and attended thelectures of Cuvier, Etienne Geoffroy 
St.-Hilaire, Lamarck, Duméril, and Haiiy. 
But he was recalled from Paris sooner than he had intended. In 
1805, on the recommendation of Semmering, he was appointed Pro- 
fessor of Zoology and Anatomy in the University of Landshut, at the 
early age of 25. Here he found abundant occupation ; for, although 
he was installed in a new and beautiful anatomical theatre, it was 
totally unprovided with preparations of any kind. He found nothing 
in this way but a chest of bones and an Egyptian mummy ; nor had 
he, moreover, any help in the supplying of these deficiencies, having 
first even to instruct his prosector in the art of dissection. Thanks 
to Napoleon, however, there were at that time plenty of subjects to 
be had at Landshut, which was occupied alternately by French, 
Bavarian, or Austrian troops, from whom the Anatomical Professor, 
at any rate, was furnished with abundant supplies of bodies, amount- 
ing probably on occasion to a superfluity, as after the battle of Aus- 
terlitz, in which 15,000 Russian prisoners were taken, very many 
of whom died on their transit through the town. Earnestly occu- 
pied in his work, and surrounded with a circle of scientific friends, 
his life passed usefully along, and in 1807 he married at Ratisbon 
