CONTENTS. vii 



PAQB 



Professor Silliman to Dr. Hitchcock on the Death of his Child; 

 on the Method of Studying Chemistry ; on Professor Stuart's Geolog- 

 ical Kemarks ; on the Bird-Tracks. Dr. Hitchcock on his Geolog- 

 ical Critics; on the Spirit of his Writings. Professor Silliman on 

 the Clergy; ou Wiseman's Book; on the Bird-Tracks. Letters to 

 Dr. Spring on Geology and Scripture. Letters from Agassiz. 

 Agassiz on his own Visit to England; on his Studies; on Mr. Red- 

 field; on the "Journal of Science"; on his Work on Glaciers; on 



his Proposed Visit to America ; announces his Arrival in Boston . . . 132 



CHAPTER XXIH. 



LETTERS FROM LYELL, MURCHISON, OWEN, DAUBENY, HERSCHEL, 

 ETC. 



Lyell on Professor Silliman's Lectures; on his own Geology; on Pro- 

 fessor Silliman's Influence; on Revisiting America; on Mantell. 



Lady Lyell on Professor Silliman's Travels; on the Marriage of 

 her Sister. Murchison on the Geology of Russia and of America; 

 on Dana's Work on Corals; on Colonel Fremont. Owen on the 

 Footprints of the Connecticut Valley; on his own Labors in Anat- 

 omy. Daubeny on his own Journal in the United Stales ; on Lie- 

 big; on the Revolution in France (1848); on the Relations of Eng- 

 land and America ; on Education at Oxford. Sir J. F. W. Her- 

 schel on the late Mr. E. P. Mason. Letter from Professor Haid- 

 inger. Letter from Professor Coneybeare. Letter from Pro- 

 fessor J. F. W. Johnston on Russia. Letter from Professor W. B. 

 Rogers 161 



CHAPTER XXIV. 



CORRESPONDENCE WITH DR. MANTELL. 



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

 Fortune among English Families; on Tariffs. Professor Silliman 

 on Nullification 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. Ly ell'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 Medals of Creation; 

 on Sir R. Peel; on Dr. Lardner. Professor Silliman on Equiv- 

 ocal Generation and the Nebular Theory; on Lyell's Visit. Dr. 

 Mantell on the Potato-rot and the Condition of the English Poor; 

 on his Geology of the Isle of Wight. Professor Silliman on Dr. 

 Mantell's Sufferings; on Mr. Lyell's Reference to Dr. Mantell (in 



