30 NEW YORK STATE MUSEUM 



for graphite and development of new properties than for some time, 

 no doubt a natural reaction from the widespread attention which 

 the industry shared in the few preceding years and which led to 

 many ill-founded ventures. The technical and commercial aspects 

 of the graphite business are peculiar, and it is only by persistent 

 effort and experiment that success has been achieved in the utiliza- 

 tion of the low-grade Adirondack deposits. 



The main producer of graphite of late years has been the Joseph 

 Dixon Crucible Co. operating the mine at Graphite, Warren county. 

 The company also owns mines at Hague on Lake George and on 

 Lead hill near Ticonderoga, but these are not now worked. The 

 graphite is first separated at the mine and shipped to Ticonderoga 

 for refining. 



The Crown Point Graphite Co. has worked a deposit near Chilson 

 lake, Essex county, which differs from the usual Adirondack type 

 in that the graphite is associated with limestone. It is said to use a 

 drv process for the recovery of the graphite. The product is re- 

 fined in a finishing mill at Crown Point Center. The company 

 expects to increase its output during the current season. 



The Glens Falls Graphite Co. reported a small production from 

 the mine at Conklingville. 



The Empire Graphite Co., with a mine at Greenfield Center, 

 Saratog^a county, also contributed tO' the output in 1910. 



The exploration of the Faxon property, situated near the Dixon 

 or American mine at Graphite, which was mentioned in the review 

 of the industry for igog, has not as yet led to active mining opera- 

 tions. The recent work has demonstrated the existence of very 

 extensive deposits of graphite rock, fairly rich and uniform in 

 grade. 



GYPSUM 



The gypsum industry was very active during 1910, specially in 

 western New York where the manufacture of calcined plasters has 

 become an important branch. The returns from the mines and 

 quarries showed a gain exceeding 20 per cent in the output of rock, 

 or about the same ratio of increase as was indicated for the pre- 

 ceding year's output which outstripped all records up tO' that time. 



The recent growth of the industry in view of the rather dull condi- 

 tions in the buliding trades seems remarkable. No new mines 



