262 POPULAR SCIENCE MONTHLY. 



Minnesota University; Dr. Kichard Mather, professor of Greek 

 at Amherst College; the Rev. Dr. Goodwin, of Chicago; and Dr. 

 William Hayes Ward, editor of The Independent. After graduation 

 he spent a year in special study of Hebrew and chemistry at Yale 

 College, two years at Andover Theological Seminary, and one year 

 in Europe, studying in the Royal School of Mines under Professor 

 Huxley, and in the British Museum investigating the Crustacea and 

 trilobites. Here he enjoyed the friendship of Professor Richard 

 Owen, and had the guidance of Dr. H. Woodward. 



In 1857 Mr. Hitchcock was appointed assistant geologist to the 

 Geological Survey of Vermont. He served the full term of the 

 survey, and had charge of the preparation of the report relating to 

 the stratigraj3hical geology, the measurement and delineation of 

 the sections, and the compilation of the geological map. 



In 1861 he received the appointment of State Geologist of 

 Maine, in which service he spent two summers in field work, prepar- 

 ing two reports of progress, which were published in connection with 

 the report of the secretary of the Board of Agriculture. Besides 

 the general reconnoissance, he discovered the existence of large areas 

 of Upper Silurian and Devonian terranes. He has embodied his 

 views of the distribution of the formations in his general map of the 

 United States. 



Having chosen the ministry for his profession, Mr. Hitchcock 

 studied theology under Dr. E. A. Park, of Andover, and the Rev. 

 Dr. Taylor, of New Haven. Questions of the relations of theology 

 and science were attracting much attention, and he treated of them 

 in two papers in the Bibliotheca Sacra, one of which was afterward 

 used for the guidance of theological students in several seminaries. 

 As more opportunities were offered for scientific work, the ministry 

 was given up. This was the time when the doctrine of natural selec- 

 tion came to the front for investigation, and the early history of 

 mankind was receiving increased attention. Mr. Hitchcock came 

 home from Europe in 1867 convinced of the truth of some form of 

 evolution, of a considerable antiquity of man, and of the probability 

 of a plural origin of the human race. Finding that some of his 

 views on these subjects were not acceptable to his associates, he 

 ceased to make them prominent in his class instructions, and de- 

 voted his attention to the more technical details of geology. Since 

 then general opinion has advanced so far on these subjects that the 

 views he held at that time seem now really conservative. 



In 1868 he was appointed State Geologist for New Hampshire, 

 and spent ten years in the survey of that State. The results of his 

 work there were published in three large quarto volumes, with a 

 folio atlas of maps, profiles, and sections. The rocks described con- 



