LIME AND CEMENT INDUSTRIES 819 



The 14 and 17 inch layers make good h*me and are shipped to 



Geneva for burning. The average composition of the rock is 



as follows: 



Silica 14.85 



Alumina T . 18 



Ferric oxid 1 . 57 



Lime 40 . 23 



Mafi^nesia 1.95 



Carbon dioxid 33 . '76 



99.54 



The Tully limestone lies between the Hamilton and Genesee 

 shales, and is of importance, as it is the most southern lime rock 

 of central ISTew York. It outcrops at several localities accord- 

 ing to D. F. Lincoln.-^ 



The most northern is about a mile west of Hayt Corners ; a 

 second exposure is at Willard hospital, where it forms the cas- 

 cades near the reservoir; another on Seneca lake 1 mile south of 

 Willard landing, where 15 to 20 feet is exposed; still other out- 

 crops are in the cjeek near .Flighland station and at Lodi. 



A quarry has been opened in it 1 mile southeast of Hayt 



Corners. 



Steuben county^ 



'No beds of limestone are found within the county, but an ex- 

 tensive deposit of marl is dug at Perkinsville and Wayland (pi. 

 67). It lies in a great swampy arGa, and furnishes material for 

 two Portland cement works, that of Millen & Co., of Wayland, 

 and the Wayland Portland cement co., located at Perkinsville. 

 Though the deposit is of considerable extent, it is not underlain 

 by clay, which has to be brought from. Morrisville. 



Tompkins county^ 



The only limestone formation is the Tully, which outcrops on 

 the eastern shore of Cayuga lake between Lakeridge and Lansing 

 along the Auburn branch of the Lehigh Valley railroad. 



1 Lincoln, D. F. Geology of Seneca county, (see 15th an. rep't N. Y. state 

 geol. p. 57) 



2 Hail, James. Geol. 4th dist. N. Y. p. 480. 



3 Hall, James. Geol. 4tli dist. N. Y. p. 475. 



