34 NEW YORK STATE MUSEUM 



property at Victor, Ontario co., but has made as yet no pro- 

 duction. 



The United States Gypsum Co. has taken over the quarry and 

 mill of the Cayuga Plaster Co., at Union Springs, which has 

 been operated in addition to its properties at Oakfield. 



A new quarry has been opened at Jamesville, Onondaga cO., 

 by James E. Hubbell of Syracuse. The beds are reported to be 

 60 feet thick. Analyses furnished by Mr Hubbell show the fol- 

 lowing percentages : 



: 12 



SiO, 3-34 5-56 



Fe.Os, AI2O3 2.92 1.88 



CaCOg 3.32 4.10 



MgC03 2.69 3.32 



CaS042H.O (Gypsum) 87.48 85.18 



99.75 100.04 



No. I is a sample of soft weathered rock and No. 2 of the hard 

 reck. 



IRON ORES 



The activity in the mining of iron ores during recent years 

 was well maintained throughout most of 1907, as it was only 

 in the last two or three months of the year that the production 

 began to fall off in sympathy with the general business de- 

 pression. The returns furnished by the mining companies show 

 an advance sufficient to carry the production to a point above 

 that recorded for any year since 1890, the total amounting to 

 over 1,000,000 tons. With the increment supplied by the new 

 enterprises, there would have been, undoubtedly, a still larger 

 gain recorded for the present year if the market had continued 

 favorable, but several mines have now suspended work and will 

 await improved conditions before resuming. 



There were 13 companies engaged in mining during the year, 

 besides those carrying on exploratory or other preparatory work. 

 This shows a gain of two over the number for the preceding- 

 year. 



The accompanying table gives the production of iron ore, dis- 

 tributed according to kinds, for the period 1890-1907 inclusive. 

 The statistics covering the years previous to 1904 are taken from 

 the annual volumes of the Mineral Resources published by the 



