94 NEW YORK STATE MUSE'UM 



The loss by treatment with dilute Hg SO4 was .42^. Freez- 

 ing and thawing test^ produced but slight scaling. At a tem- 

 perature of 1200° to 1400° F the color changed to a dull red. 

 There were no checks, and the strength of the specimen was 

 but little impaired. It is said to harden on exposure, and if 

 quarried during cold weather will check badly from frost. 

 Owing to the depth of the pit below the surrounding country, 

 water is troublesome. It is removed by means of a steam 

 pump. The quarry is also equipped with Wardwe-11 channeling 

 machine, Band drill and steam derrick. The blocks are cut out 

 by the channeling machine, which cuts to 5 feet 9 inches. The 

 blocks are wedged out and lifted by the steam derrick. Drilling 

 is done when necessary. A mill is run in connection with the 

 quarry, where the stone is sawed, planed and rubbed for market. 

 37 men are employed during the quarrying season, which lasts 

 from Mar. 15 to Nov. 30. 



The stone is marketed chiefly in New York city. A side track 

 runs into the quarry from the railroad. The price for block 

 «tone averages GOc a cubic foot. 42 to 43 carloads are shipped 

 each month during the season. 



Warsaw, Wyoming co. 



Stone known in the trade as Warsaw bluestone is quarried 

 by two firms 3J miles south of Warsaw and 2 miles west of 

 Rock Glen on the Erie Yailroad. Both quarries are on the same 

 ledge of stone, within 25 yards of each other. The names of 

 the firms are Warsaw bluestone co. and Otis & Gage. The 

 latter firm has just begun operations this year. 



The quarry formerly worked by the Warsaw bluestone Co. 

 at Rock Glen has been abandoned for some years, though the 

 mill still stands and is connected with the present quarry by a 

 railroad track. The bed of stone now worked is 35 feet 

 thick. The top 5 feet are black rock and practically waste. 

 The overburden consists of hardpan holding broken rock and is 

 15 feet thick. The bed i^ horizontal so far as can be seen. The 

 lifts vary from 6 inches to 8 feet in thickness. In quality, color 



