New York State Museum 



THE QUAKKY INDUSTRY IN SOUTHEASTERN NEW 



YORK 



The following paper is purely preliminary in its nature, a 

 more complete discussion of the subject being reserved for a 

 forthcoming museum bulletin on the Granites and marUes of 

 New York state, which is to form one of a series on the build- 

 ing stones of the state. The area discussed in the present paper 

 includes the counties of New York, Queens, Westchester, Put- 

 nam, Dutchess, Rockland and Orange. A few quarries in the 

 western half of Fairfield county, Ct., are also described. 



The data here presented have been collected during the past 

 four years field work in the area under consideration. Descrip- 

 tions of several of the quarries have been furnished the writer 

 by Mr H. C. Magnus, who spent some time in 1900 on field work 

 for the state museum in central WestcJiester county, and by Mr 

 B. F. Hill, who was engaged for several field seasons on work in 

 Putnam county. The writer is also indebted to Mr Joseph Morje 

 for valuable assistance in the preparation of the material for 

 publication. Other acknowledgments are made in the course of 

 the paper. 



GEOLOGY OF THE AREA 



The area discussed in the present paper, though relatively 

 small, contains representatives of all the geologic systems from 

 the pre-Cambrian to the Trias which occur in New York state. 

 The geologic discussion here presented is merely a summary of 

 those facts of importance in connection with the quarry in- 

 dustry of the area. The areal distribution of the vari- 

 ous formations is very complicated and can hardly be ex- 

 plained without reference to a geologic map of fairly large 

 scale. The new edition of the geologic map of New York, 

 on a scale of 5 miles to the inch, will be found service- 

 able in this connection. Westchester and New York coun- 

 ties, with small parts of Rockland, Orange and Putnam, 

 are well shown on the geologic map of a part of south- 

 eastern New York by Dr F. J. H. Merrill, published in 1895. 



