shell. However, he displayed an almost incredible 

 endurance, was literally skin and bones because he 

 forgot about eating, drinking, and sleeping, and 

 was sustained only at the pipe which he rarely took 

 from his mouth. For his observations he had some tin 

 and clay containers fitted with a thermometer and 

 usually heated by oil or alcohol lamps, or, rarely, 

 with charcoal; the eggs were placed there in clean 

 white sand. Because my presence did not interrupt 

 him, I frequently visited him. We smoked and talked, 

 and during this time he moved from one container to 

 another carrying out drawings of the opened eggs. He 

 was capable of doing that with thoroughness. Since 

 the drawings and the features represented were similar 

 from one egg to another, the speed and easiness with 

 which he drew frequently left me in amazement. 



Shtender enclosed with his letter a paper from an album 

 which Tredern had given him as a farewell gift, showing a 

 view of Jena and the embryologist's autograph (Figure 17). 

 On the above right was written: "Kennst du das Land, wo die 

 Kartoffeln blfihen? Lebe wohl und denke an mich. Dein Freund 

 und Binder S. G. Tredern. "7 On the left is the inscription 

 "Memoria der Fuchse."** Below the picture is the date: 17/3 

 1809 Gottingen. "A country where potatoes grow," in Tredern' s 

 words, "by which you must mean GCttingen, where potatoes are 

 extensively cultivated and where poor students feed mainly 

 on them," giving it a humorous nickname pointing out their 

 gastronomical predilection. 



Where was Tredern in the period from 1809, when he left 

 Gottingen, to 1811, when he appeared in France? Again it is 

 not known. In the summer of 1811 in Paris, Tredern passed the 

 government examinations, obtaining the right to practice 

 medicine in France. He based his thesis on the subject of the 

 organization of hospitals. After that, he joined the French 

 fleet as a physician. He travelled to Guadaloupe, where he died 

 unmarried. The date of his death is unknown. 



7. "Do you know the place where the potatoes grow? Live well 

 and remember me. Your friend and brother S(ebastian) G(raf) 

 Tredern . " 



8. "Memory of fuchse." "Fuchse" are incoming students, 

 frequently subjected to the mocking of the members of 

 the student corporations. 



211 



