GEOLOGY AND PALEONTOLOGY 



INTRODUCTION 



BY GROVE KARL GILBERT 



THE papers in this volume represent the results in geol- 

 ogy and paleontology of the Harriman Alaska Expedition. 

 The narrative of the Expedition and an account of its organ- 

 ization are given in the first volume of the series, but as 

 not all readers may have access to the entire series, a cer- 

 tain amount of repetition may be permitted in this place. 



The Expedition occupied the months of June and 

 July, 1899. Organized by Mr. E. H. Harriman, of 

 New York City, and conducted at his expense, it was 

 originally planned as a holiday excursion for his family 

 and a few friends interested chiefly in hunting. The 

 plan was afterward enlarged so as to include scien- 

 tific work, and was further modified by giving the re- 

 search corps practical control of the route and other 

 details affecting their work. There were twenty-five 

 scientific workers, representing a wide range of subjects 

 ethnology, zoology, botany, geology and geography. 

 Five were accounted members of the geologic division, 

 of whom three gave exclusive attention to geology and 

 physical geography, while the others were partly occu- 

 pied also with studies in ethnology and botany. The 

 geologists were Dr. Wm. H. Dall, of the Smithsonian 

 Institution and the United States Geological Survey, Mr. 



