26 LOUIS AGASSI Z. 



terflies, caterpillars^ worms, and the like. Be- 

 side this, we always have from Tiedemann the 

 very best books for reference and comparison, 

 for he has a fine library, especially rich in 

 anatomical works, and is particularly friendly 

 and obliging to us. 



In the afternoon from two to three I attend 

 Geiger's lectures on pharmaceutical chemistry, 

 and from five to six those of Tiedemann on 

 comparative anatomy. In the interval, I some- 

 times go with this naturahst, so recently ar- 

 rived among us (his name is Agassiz, and he 

 is from Orbe), on a hunt after animals and 

 plants. Not only do we collect and learn to 

 observe all manner of things, but we have 

 also an opportunity of exchanging our views 

 on scientific matters in general. I learn a 

 great deal from him, for he is much more at 

 home in zoology than I am. He is familiar 

 with almost all the known mammalia, recog- 

 nizes the birds from far off by their song, and 

 can give a name to every fish in the water. 

 In the morning we often stroll together 

 through the fish market, where he explains 

 to me all the different species. He is going 

 to teach me how to stuff fishes, and then we 

 intend to make a collection of aU the native 

 kinds. Many other useful things he knows ; 



