172 CHEMICAL MANUEES. 



Moore's Mill, near to Mount Holly Springs, Pennsylvania, where 

 there is a mine of waveliite, which it possesses. The old method of 

 heating by gas is used. The factory having been destroyed by a 

 fire, another was constructed and started in March, 1905. Electric 

 furnaces were installed and started during 1905, but the production 

 of electricitv bv means of steam engines was too costlv, and in 

 1906 the factorv was transferred to Yorkhaven, Pennsvlvania, 

 where electricity yielded by a fall of water could be used. This 

 company announces that it produces 500 lb. of phosphorus a day, 

 and that it could produce 1200. The census of 1900 states three 

 factories were at work in the United States, but that of 1904- 

 1905 only shows the Oldbury Electro-Chemical Co. of Niagara 

 Falls. Besides what it produces, the United States annually im- 

 ports 30,000 to 40,000 lb. of phosphorus, which pays an import 

 duty of 18 cents per lb. The price on New York market varies 

 with the quahty from 45 to 70 cents per lb. 



