198 MISCELLANEA. [1875. 



happiness of mankind. Also his freedom from all religious 

 bigotry, though these perhaps would be a superfluity." 



The following refers to the Zoological station at Naples, a 

 subject on which my father felt an enthusiastic interest :] 



C. Darwin to Anto?i Dohrn. 



Down [1875 ?]• 



My DEAR Dr. DOHRN, — Many thanks for your most kind 

 letter. I most heartily rejoice [at your improved health and 

 at the success of your grand undertaking, which will have 

 so much influence on the progress of Zoology throughout 

 Europe. 



If we look to England alone, what capital work has already 



been done at the Station by Balfour and Ray Lankester 



When you come to England, I suppose that you will bring 

 Mrs. Dohrn, and we shall be delighted to see you both here. 

 I have often boasted that I have had a live Uhlan in my 

 house ! It will be very interesting to me to read your new 

 views on the ancestry of the Vertebrates. I shall be sorry to 

 give up the Ascidians, to whom I feel profound gratitude ; but 

 the great thing, as it appears to me, is that any link whatever 

 should be found between the main divisions of the Animal 

 Kingdom. . . . 



C. Darwin to August Weismann. 



Down, December 6, 1875. 



My DEAR Sir, — I have been profoundly interested by your 

 essay on Amblystoma,* and think that you have removed a 

 great stumbling-block in the way of Evolution. I once thought 

 of reversion in this case ; but in a crude and imperfect manner. 

 I write now to call your attention to the sterility of moths 

 when hatched out of their proper season ; I give references in 

 chapter 18 of my 'Variation under Domestication' (vol. ii. 



* c Umwandlung des Axolotl.' 



