6& NEW YORK STATE MUSEUM 



through the Onondaga Coarse Salt Association. It is sold in seven 

 grades, of which six represent the different sizes of salt crystals 

 separated by screening, as follows : Diamond C, B. C, Standard, 

 Diamond F, B. F., and 6 mesh B. F. The finest size is 8 mesh, 

 which is crushed to pass an eight-mesh screen. The product is 

 used for the same purposes practically as rock salt. 



The list of manufacturers of artificially evaporated salt at pres- 

 ent includes the following: International Salt Co., with works at 

 Myers and Watkins ; Worcester Salt Co., Silver Springs ; Rock 

 Glen Salt Co., Rock Glen; Eureka Salt Co., Saltvale; Remington 

 Salt Co., Ithaca; Watkins Salt Co., Watkins; Genesee Salt Co., 

 Piffard; and Le Roy Salt Co., Le Roy. 



The Eureka Salt Co. began the manufacture of salt in April 1913, 

 having taken over the works at Saltvale, Wyoming county, for- 

 merly owned by the Crystal Salt Co. The plant is equipped with 

 six open pans and two grainers and a mill for the making of table 

 salt. 



The nature of the brine used in the manufacture of salt is shown 



by the following analysis, of which no. i represents an average 



example of the Onondaga natural brines and no. 2 of an artificial 



brine from the solution of the rock salt : 



I 2 



MgCl2 .155 -049 



CaCl2 . 129 . 134 



CaSOi .599 -349 



NaCl 16.921 23.295 



Literature of salt. The geological occurrence of the salt de- 

 posits has been set forth in detail by Luther in his papers, " Geol- 

 ogy of the Livonia Salt Shaft " and " Salt Springs and Salt Wells 

 of New York and Geology of the Salt District," published respect- 

 ively in the 13th and i6th Annual Reports of the New York State 

 Geologist. A good description of the technology of the brine salt 

 manufacture is given by F. E. Englehardt in Merrill's " Salt and 

 Gypsum Industries of New York," which is Bulletin 11 of the New 

 York State Museum. Many records of salt wells are assembled in 

 the papers by Bishop included in the 5th Annual Report of the New 

 York State Geologist and in the 45th Annual Report of the State 

 Museum. 



