DESCRIPTION OF MARBLE A^D LIMESTONE QUARRIE8 429 



Tully Limestone. 



The Tully limestone lying above the Hamilton shales, is a thin 

 formation which is seen in Onondaga county and to the west — 

 on the shores of Cayuga lake — in Seneca county and disappear- 

 ing in Ontario county. It does not furnish any stone other than 

 for rough work and in the immediate neighborhood of its 

 outcrops. 



Calcareous Tufa 



As a supplement to the limestones the quarry in calcareous 

 tufa at Mohawk, in the Mohawk valley, should here be men- 

 tioned, although the quarry is of no importance and there is no 

 outcrop large enough for much work in it. 



DESCRIPTION OF MARBLE AND LIMESTONE 

 QUARRIES 



Marbles 



New York City. — A white, crystalline limestone was formerly 

 quarried at Kingsbridge and used in the c- nstruction <i buildings 

 in the city. The same limestone is now exposed in the deep cut 

 made for the Harlem ship canal. Crystalline limestone has 

 been quarried at Morrisania and Mutt Haven also, but they 

 can scarcely be called marbles in a pr. per sense, although used 

 f«»r ordinary construction. 



Tremont, New York City. — Four quarries have been opened 

 in the white marble in Tremont, and worked for house trimmings 

 and ordinary construction. The Tremont marble can be seen in 

 the new buildings of St. John's College, Fordham, where it has 

 been used effectively with the dark-blue gneiss. The output of 

 these quarries is small and unimportant. 



Tuckahoe, Westchester County. — The Tuckahoe Marble 

 Company and the New York Marble Company quarry marble at 

 Tuckahoe. The first-named company works what was form- 

 erly known as Young's quarry. The latter company has a 

 large quarry adjoining it on the north. The stone of these 

 quarries is coarsely-crystalline in texture and pure white. 

 In composition it is a true dolomite. A sample from the New 

 York Quarry Company (J. M. Masterton) was found to contain 



