SUGGESTIONS FOR STUDY 237 



Geologist or with the State Museum. These will be found in the 

 publications of various scientific societies; the New York Aca- 

 demy of Sciences, the American Association for the Advance- 

 ment of Science, the Geological Society of America and others; 

 in the American Journal of Science, the American Geologist and 

 other periodicals; and in the publications of the U. S. Geological 

 Survey. 



Prof. John M. Clarke, in the 13th report of the State Geologist 

 for 1893, also in the 47th report of the New York State Museum, 

 has published a list of papers on the geology of New York from 

 1876 to 1893. 



Attention is also directed to Bulletin No. 127 of the U. S. 

 Geological Survey, entitled Catalogue and Index of Contributions 

 to North American Geology, 1732-1891, by N. H. Darton, price 

 60 cents. 



For a proper understanding of the geographic distribution of 

 the New York formations, a geologic map of the state is neces- 

 sary. For general reference the large map prepared by the State 

 Geologist is invaluable, and for field use, the small Economic 

 and Geologic map is recommended. This may be purchased 

 through the Secretary of the University of the State of New York 

 for 25 cents per copy unmounted, or 75 cents dissected and 

 mounted on muslin. 



The invaluable Geological Railway Guide of MacFarlane, pub- 

 lished by Appleton & Co., is commended as a guide in travel. 

 Dana's Manual of Geology is also indispensable as a compendium 

 and reference book pn the geology of the United States. The 

 most excellent Text-booJc of Geology by Sir Archibald Geikie is 

 highly recommended for reference. The Principles of Geology by 

 Sir Charles Lyell is a work of great value which should be read by 

 all students and teachers. Dana's Text-look of Geology is very 



useful. 



While many are deterred from the purchase of these volumes 

 by their seeming high price, it is, after all, but a small sum to pay 

 for the liberal education in geology which can be obtained 

 through their judicious use. 



