190 MISCELLANEA. [1874. 



Professor Tyndall's brilliant presidential address, in which a 

 sketch of the history of Evolution is given, culminating in an 

 eloquent analysis of the ' Origin of Species/ and of the nature 

 of its great success. With regard to Prof. Tyndall's address, 

 Lyell wrote (* Life,' vol. ii. p. 455) congratulating my father 

 on the meeting, " on which occasion you and your theory of 

 Evolution may be fairly said to have had an ovation." In 

 the same letter Sir Charles speaks of a paper * by Professor 

 Judd, and it is to this that the following letter refers :] 



C. Darwin to C. Lyell. 



Down, September 23, 1874. 



My dear Lyell, — I suppose that you have returned, or 

 will soon return, to London ; f and, I hope, reinvigorated by 

 your outing. In your last letter you spoke of Mr. Judd's paper 

 on the Volcanoes of the Hebrides. I have just finished it, 

 and to ease my mind must express my extreme admiration. 



It is years since I have read a purely geological paper 

 which has interested me so greatly. I was all the more 

 interested, as in the Cordillera I often speculated on the 

 sources of the deluges of submarine porphyritic lavas, of 

 which they are built ; and, as I have stated, I saw to a 

 certain extent the causes of the obliteration of the points of 

 eruption. I was also not a little pleased to see my volcanic 

 book quoted, for I thought it was completely dead and 

 forgotten. What fine work will Mr. Judd assuredly do ! . . . . 

 Now I have eased my mind ; and so farewell, with both 

 E. D.'s and C. D.'s very kind remembrances to Miss Lyell. 



Yours affectionately, 



Charles Darwin. 



* "On the Ancient Volcanoes f Sir Charles Lyell returned from 



of the Highlands." — 'Journal of Scotland towards the end of Sep- 

 Geolog. Soc.,' 1874. tember. 



