IOO 



NEW YORK STAT]: Ml'SKl'M 



Chemical analyses. The following analyses indicate the composi- 

 tion of the talc from this district. No. I and No. 2 are from Dana's 

 System of Mineralogy. No. 3 is quoted from Professor Smyth's 

 article. For No. 4 the writer is indebted to Mr A. McLintock of the 

 Uniform Fibrous Talc Co.: 



Si Oi. 



AL O.. 



Fe, Oo. 



FeO.. 



MnO. 



MgO. 



CaO. 



Na 2 0. 



H2O.. 



100.58 



2 

 59 -92 



•50 



.76 



31-37 



•57 



.48 



6.25 



99 85 



3 

 62. 10 



4 

 68.9 



1-3 



26.6 

 .8 



2.4 



1 00 . 00 



Production. The first shipments of talc from the district were 

 made during the seventies of the last century. The earliest regular 

 operations are said to have been instituted by a mineralogist named 

 Minthorne who formed a company for mining and milling talc on 

 the Wight farm in the town of Fowler. By the year 1880 shipments 

 were made in considerable quantity. The production from that 

 date as given in the volumes of the Mineral Industry or reported 

 by this office have been as follows : 



Production of talc in New York 



