524 ARNOLD GUYOT. 



pointed Professor of History and Physical Geography in the Academy 

 of Neufchatel, which was now upon a university basis, Agassiz was 

 amoner his collea<;ues at this time. Here he delivered no less than 

 thirteen different courses of lectures in connection with the two de- 

 partments of which he had charge. Agassiz having taken up the 

 glaciers with his usual enthusiasm, Professor Guyot entered upon an 

 investigation of the erratic bowlders, which had been neglected since 

 the last observations of De Charpentier. During seven successive 

 summers Professor Guyot conducted his investigations on both sides 

 of the Central Alps in Switzerland and in Italy. From eleven differ- 

 ent basins, covering a surface three hundred miles long and two 

 hundred miles wide, he collected about six thousand specimens of 

 rocks as vouchers of the results. One set of these specimens he placed 

 in the museum at Neufchatel ; the other, he gave to the Museum of the 

 College of New Jersey. From these specimens and his more than 

 three thousand barometrical observations he was enabled to trace 

 these bowlders to their source in the mountains, and to determine 

 the laws of their distribution and the coincidence of these with the 

 laws of the moraines on the glaciers. The main results were pub- 

 lished in the Bulletin de la Societe des Sciences Naturelles de Neuf- 

 chatel, and in Comte d'Archiac's Histoire de la Geologic. He next 

 made soundings in the Lake of Neufchatel, and published a fine 

 topographical map of its subaqueous basin. 



After the political revolution of 1848, he came to this country and 

 settled in Cambridge, Mass. He first became extensively known 

 here by a course of lectures on " Comparative Physical Geography 

 m Its Relation to the History of Mankind," delivered before the 

 Lowell Institute in Boston, in the winter of 1848-49. These were 

 translated by Professor Felton, and published in the volume entitled 

 " Earth and Man." He was employed for some years by the Massa- 

 chusetts Board of Education to deliver lectures in the Normal Schools 

 and before the Teachers' Institutes, and thus began the reform in the 

 method of studying and teaching geography. In 1854 he was elected 

 Professor of Physical Geography and Geology in the College of New 

 Jersey, and removed to Princeton in 1855, where he continued 

 to reside. He was also appointed lecturer in the State Normal 

 School at Trenton. He delivered courses of lectures in the Theo- 

 logical Seminary at Princeton, in the Union Theological Seminary 

 at New York, and before the Smithsonian Institution at Washing- 

 ton, D. C. 



In addition to the discharge of his duties as Professor, he continued 



