XXXI 



tracted comparatively little attention. At that time, indeed, the 

 revived and improved use of the microscope in physiology, the more 

 exact application of physical experiment, and other influential causes 

 were about to introduce a mass of new materials into the science, and 

 to involve a fresh handling of the old in any systematic treatise that 

 should be up to the actual state of knowledge ; and it is probable 

 that advancing years and other cares indisposed the author to per- 

 severe in what had become an arduous task. 



Tiedemann meanwhile did not intermit his labours in human 

 and comparative anatomy. He had, in conjunction with Oppel and 

 Liboschitz, projected a work on the anatomy and natural history of 

 Reptiles ; but, in consequence of the death of his collaborators, it 

 went no further than the part on Crocodiles, which appeared in 1817. 

 In 1820 he published a monography of the Ursine Sloth; in 1822 

 his 'Tabulae Nervorum Uteri,' which he dedicated to the Royal 

 Society, and in the same year came out the ' Tabulae Arteriarum 

 Corporis HumamV This grand work, though not exactly faultless 

 in every point, has, more than any other, contributed to spread 

 abroad tbe name of Tiedemann ; for the figures it contains have 

 been reduced and copied and disseminated, in collections of anato- 

 mical plates and in anatomical systems and hand-books, in every 

 part of the world where anatomy is taught. A supplement, contain- 

 ing additional figures of varieties in the distribution of the arteries, 

 was published in 1846. 



Besides the works noticed in this brief sketch, Tiedemann was the 

 author of various minor essays and memoirs, published separately, or 

 contributed to Transactions of Societies and Journals. He was also 

 associated with the two brothers Treviranus in conducting the 

 'Zeitschrift fur Physiologic.' A complete list of his writings is 

 appended to a memoir of his life read before the Bavarian Academy 

 of Sciences, by his son-in-law Professor Bischoff, from whence the 

 facts in the present notice have been mainly derived. 



In 1807 Tiedemann married the daughter of the Obervoght of 

 Rastatt, whose family name was von Holzing ; and with her he lived 

 in happy union to the end of his days. She bore him seven children, 

 of whom three survive him. Unhappily three of his sons were drawn 

 into the revolutionary movement in Baden in 1848, for which the 

 eldest paid the forfeit of his life, and the other two had to exile them- 



