200 LIFE OF BENJAMIN SILLIMAN. 



address, by Mr. Lyell, before the Geological Society, 

 was full and warm in vindication of your discoveries and 

 merits, and you may remember it was republished in the 

 "American Journal." Mr. L. is now republishing his works 

 in Boston, having brought over the wood-cuts with him. 

 He is to begin there on the 19th of October, and lecture 

 six weeks, lie has told me of his huge drawings, and Mr. 

 Bakewell has prepared eight more for him on a huge scale, 

 drawn principally from his own works. He thinks the 

 drawings I have lectured from quite too small, and counts 

 much upon the aid from his large drawings. He is anxious 

 that I should be present at his beginning, to aid him by my 

 advice. It will be extremely difficult ; but I shall try to 

 break away for a few days and hear a couple of his lectures. 

 He has been through the State of New York with Mr. Hall, 

 a clever young geologist of that State, and has written me 

 that he has been much gratified ; a week since he was on 

 the Hudson, near the Catskills, and, I suppose may, ere 

 this, be gone into Pennsylvania with Professor Rogers, as 

 he was anxious to see that State, as well as New York, be- 

 fore beginning his lectures. His plan is to go South in the 

 winter, and return again to the North in the spring. He 

 intends to finish a year in America. Canada, I suppose, he 

 will visit next summer. I have not heard a word of the 

 impression he has made elsewhere, except , on my friend, 

 Win. ('. IJ-.'d field, who was his active companion in New 

 York, and up the Hudson to Albany. Mr. R. was much 

 pleased with them both, and said they were delighted with 

 the glorious scenery of the Hudson, on a bright day, in one 

 of our fine steamboats. Thus much of our friends. 



TO DR. MANTELL. 



NEW HAVEN, December 14, 1841. 



'I'liu painful and alarming infirmity with which 



Gd 'it to visit you, gives us great concern ; but 



we observe with great satisfaction the very becoming re- 



