CHAPTER XXIV. 



CORRESPONDENCE WITH DR. MANTELL. 



Origin of the Correspondence. Dr. Mantell on the Vicissitudes of For- 

 tune among English Families; on Tariffs. Professor Silliman on Nul- 

 lification and Slavery; on Mrs. Trollope's Book on the United States; 

 on Captain Hamilton's Book on the United States. Dr. Mantell on 

 the Duke of Wellington; on Agassiz's Visit to him; on Mr. Lyell's 

 History. Professor Silliman on the Means of Health; on the Bird- 

 Tracks of the Connecticut River Valley ; on the Visit of Dickens, and 

 that of Lyell, to the United States. Dr. Mantell on Mr. Bakewell, his 

 Infirmities, his Death. Professor Silliman on Dr. Mantell's Disease. 

 Dr. Mantell on the Medak of Creation; on Sir R. Peel; on Dr. Lard- 

 ner. Professor Silliman on Equivocal Generation and the Nebular 

 Theory; on Lyell's Visit. Dr. Mantell on the Potato-rot and the Con- 

 dition of the English Poor; on his Geology of the Isle of Wight. Pro- 

 fessor Silliman on Dr. Mantell's Sufferings; on Mr. Lyell's Reference to 

 Dr. Mantell (in his Geology, Second Edition); on the Mexican War and 

 European War. Dr. Mantell on the Dinner of the Geological Society. 

 Professor Silliman on California. Dr. Mantell on Faraday; on the 

 Death of Sir R. Peel; on his Annuity from the Queen. Dr. J. C. 

 . Warren on the Death of Dr. Mantell. 



A MOST intimate and confidential intercourse grew 

 up between Professor Silliman and the celebrated 

 geologist, Dr. Mantell, although they had never seen 

 one another until the second visit of the former to 

 Europe, in 1851. Dr. Mantell was an ardent and 

 most diligent investigator, and is entitled to the 

 honor of making very important discoveries. Nat- 

 urally sensitive, he was rendered the more so by the 

 bodily infirmities of a most painful character, with 

 which he was compelled to struggle. The amount 

 of work which he accomplished, under the burden 



