IV PREFACE. 



likely to interest a wider circle than those more particu- 

 larly addressed in the second part of the book, which 

 consists of papers on various points connected with the 

 Natural History of the region, written, where liot other- 

 wise specified, by Prof Agassiz. This portion of the 

 work, however, does not aim at a mere detail of facts, 

 but is intended to show the bearing of these facts upon 

 general questions. 



The Landscape Illustrations are taken from sketches 

 made on the spot, by Mr. Cabot. Those of the Second 

 Part were drawn and lithographed by Mr. Sonrel, a Swiss 

 artist of much distinction in this branch, and formerly 

 employed by Prof Agassiz at Neuchatel, but now resident 

 in this country. 



Boston, March, 1850. 



