LIME AND CEMENT INDUSTRIES 783 



2 Same as 1 with carbonates calculated. 



3 An analysis of Chazy limestone quoted from Boynton, 1 and 



said to be from Willsboro. 



1 



Si0 2 2.43 



CaO 51 



CaC0 3 



A1 2 3 , Fe 2 3 41 



MgO . . . . 1 



]STa 2 



K 2 



CI 



H 2 S0 4 



H 3 P0 4 



Organic matter 



• • • • > 



2 



3 



2.43 



21.39 



91.1 



TO. 31 



.41 



3.61 



2.1 



1.09 



• • •>• •' 



tr. 





.8 





.31 





.69 





.2 





1.4 



54.84 96.04 99.8 



Fulton county 2 



The Calciferous and Trenton limestones form a crescent shaped 

 belt extending from Crura creek, northwest of St Johnsville, 

 through Garoga, Johnstown, Gloversville and Mayfleld up to 

 Northville. A second belt extends from JSTorthville to the south- 

 ern boundary and has a width of about 6 miles. 



Quarries are in operation at Cranberry creek and Mayfleld. 



Genesee county 3 



A very small triangular area of Niagara limestone occurs in 

 the northeastern corner of the county and a second very thin 

 strip along the northern edge. 



The Helderberg, on the contrary, extends through the central 

 part of Genesee county, passing through Batavia, Stafford, East 



1 Trans. N. Y. state agric. soc. 1852. 12: 801. 



2 Darton, N. H. Geology of the Mohawk valley in Herkimer, Fulton, Mont- 

 gomery and Saratoga counties, (see 47th an. rep't N. Y. state mus. p. 601) 



Preliminary description of the faulted region of Herkimer, Fulton, 



Montgomery and Saratoga counties, (see 14th an. rep't N. Y. state geol.p. 33) 

 Vanuxem, Lardner. Geol. 3d dist. N. Y. 1842. 



3 Hall, James, (see Geol. 4th dist. N. Y. p. 464) 



