X CONTENTS. 



tions with Arnold Guyot. Their Work together in 

 the Alps. Letter to Sir Philip Egerton concerning 

 Glacial Work. Summer of 1839. Publication of 

 " Etudes sur les Glaciers " 275 



CHAPTER X. 

 1840-1842: ,ET. 33-35. 



Bummer Station on the Glacier of the Aar. Hdtel 

 des Neuchatelois. Members of the Party. Work 

 on the Glacier. Ascent of the Strahleck and the 

 Siedelhorn. Visit to England. Search for Glacial 

 Remains in Great Britain. Roads of Glen Roy. 

 Views of English Naturalists concerning Agassiz's 

 Glacial Theory. Letter from Humboldt. Winter 

 Visit to Glacier. Summer of 1841 on the Glacier. 



Descent into the Glacier. Ascent of the Jung- 

 frau 298 



CHAPTER XI. 

 1842-1843: ,ET. 35-36. 



Zoological Work uninterrupted by Glacial Researches. 



Various Publications. "Nomenclator Zoologi- 

 cus." " Bibliographia Zoologise et Geologise." 

 Correspondence with English Naturalists. Corre- 

 spondence with Humboldt. Glacial Campaign of 



1842. Correspondence with Prince de Canino con- 

 cerning Journey to United States. Fossil Fishes 

 from the Old Red Sandstone. Glacial Campaign of 



1843. Death of Leuthold, the Guide . . . 333 



CHAPTER XII. 

 1843-1846: .ET. 36-39. 



Completion of Fossil Fishes. Followed by Fossil 

 Fishes of the Old Red Sandstone. Review of the 

 Later Work. Identification of Fishes by the Skull. 



