y8 BULLETIN OF THE NEW YORK STATE MUSEUM 



bucket fastened to an iron chain which is operated by a 

 horse whim and derrick at the surface. Mr Olmsted states 

 that the second plaster bed is about 15 ft. thick and lies 

 over 100 ft. below the surface. He expects to drill for the 

 second plaster bed and may work it. He is at present ex- 

 perimenting in calcining his gypsum for stucco, the material 

 calcined and mixed with water setting in 10 minutes to a 

 very hard, compact mass. A favorite place for prospecting 

 for gypsum is on the knolls or rises in ground; in fact this 

 custom is very generally adopted throughout the state in 

 working gypsum deposits. The capacity of Mr Olmsted's 

 pits is about 15 tons per day. Mr Olmsted claims gofo of 

 pure gypsum in his rock. 



Two miles and a half south of Alabama Station, W. S. 

 R. R. in Genesee Co. Mr Gilmore quarries some gypsum in 

 the Tonawanda Indian reservation. Last year he quarried 

 about 200 tons. This is the most westerly locality where 

 gypsum is worked. 



At Halfway, town of Elbridge, Onondaga Co. Mr Kennah 

 owns a quarry of plaster but has not worked it for two years. 



At Marcellus Falls in Marcellus township, Onondaga Co. 

 about 2 miles from the station, Mr L. D. Sherman produces 

 200 to 300 tons of plaster per year. His quarry is along 

 the railroad not far from the station. 



Two miles and a half south of Syracuse is a plaster quarry 

 owned by A. E. Alvord of Syracuse. The quarry is worked 

 open and the caps are exposed by stripping some 8 or 10 ft. 

 of drift. The gypsum is about 30 or 35 ft. thick. 



It may be stated that about all the rest of the good plaster 

 in Onondaga Co. outside of the Syracuse bed just mentioned 

 lies in the town of De Witt. The material is known as 

 Onondaga Land Plaster. All combined the product obtained 

 from the vicinity of Fayetteville will make the second largest 

 producer of plaster in New York state. 



Mr H. H. Lansing has 24 acres of plaster now working and 

 50 acres not yet worked. He produces about 2,000 tons per 

 year. 



