1 84 Forty- SIXTH Report on the State Museum. 



This map was presented with the following title, subject to 



revision. 



Preliminary Geologic Map 



of 



NEW YORK, 



Exhibiting the Structure of the State so far as know n. 



Prepared under the Supervision 



of 



JAMES HALL, 



State Geologist, 



by 



W. J. McGee. 



Scale, 1:300,000. 



1888. 



The publication of the final geological reports, together with 

 the two geological maps, one accompanying the reports of the 

 four Geological Districts and the other accompanying the reports 

 on Agriculture by Dr. Emmons, stimulated the public, and 

 especially the agricultural public to the study of the geology of 

 the State, and for a time it seemed likely that investigations 

 in geology and its relations to agriculture would be continued by 

 the State Agricultural Society and by local societies, following 

 the example of Albany and Rensselaer counties of twenty years 

 previous. 



The following list of publications relating to geological surveys 

 of counties and parts of the state from 1820 to the present time 

 will give the student a reference to sources of information regard- 

 ing the earlier geological and agricultural work which may not 

 be current in our more recent publications. 



GEOLOGICAL SURVEYS AND MAPS OF PARTS OF 

 THE STATE OF NEW YORK. 



1830. Amos Eaton and T. Romeyn Beck. Survey of Albany county. (No map.) 

 1823. J. H. Steel. Geological structure of Saratoga county. (No map.) 



1833. Amos Eaton. Geological and agricultural survey of Rensselaer county. 



(Profiles.) 



1834. Amos Eaton. A geological and agricultural survey of the district 



adjoining the Erie canal, taken under the direction of S. Van Rens- 

 selaer. Part 1, rock formations and geological profile extending from 

 the Atlantic to Lake Erie. 



