ARRANGEMENTS WITH PUBLISHER. 127 



need it, for I am going on well with my pub- 

 lisher, M. Cotta, of Stuttgart. I have great 

 hope that he will accept my works, since he 

 has desired that they should be forwarded to 

 him for examination. I have sent him the 

 whole, and I feel very sure he will swallow the 

 pill. My conditions would be the only cause 

 of delay, but I hope he will agree to them. 

 For the fresh-water fishes and the fossils to- 

 gether I have asked twenty thousand Swiss 

 francs. Should he not consent to this, I shall 

 apply to another publisher." 



On the 3d of April he received his degree 

 of Doctor of Medicine. A day or two later 

 he writes to his mother that her great desire 

 for him is accomplished. 



TO HIS MOTHER. 



Munich, Aprils 1830. 

 . . . My letter to-day must be to you, for 

 to you I owe it that I have undertaken the 

 work just completed, and I write to thank you 

 for having encouraged my zeal. I am very 

 sure that no letter from me has ever given 

 you greater plea^re than this one will bring ; 

 and I can truly say, on my own part, that I 

 have never written one with greater satisfac- 

 tion. Yesterday I finished my medical ex- 



