No. 50.] 239 
These stones vary from ash gray to black, and present ahnost every 
shade betv^^een these colours. Blocks may be selected of uniform tex- 
ture. As handsome stones can be procured here as at the celebrated 
Amsterdam quarries, w^here so many are quarried for the Erie canal, 
and for the Albany, Troy and Nevi^-York markets. 
The blocks from some of these beds are susceptible of a high pohsh, 
and will undoubtedly make as handsome and valuable black and dark 
coloured marbles, as those at Glemi's-Falls and Swanton. 
Lime and hydraulic cement. 
Quick lime is made from particular beds of every part of the Helder- 
berg series. It is not made in such quantities as to deserve particular 
notice. In Schoharie county, it is supposed that about 20,000 bushels 
are made annually for manure, building, and for the supply of Delaware 
county, which it is believed has no beds of limestone suitable for burn- 
ing. 
Between Wilbur and Eddyville, are four limekilns for making quick- 
lime, belonging to Mr. Hamilton and Mr. Dubois. These kilns are 
supplied with limestone from strata that lie between strata of cement 
rock. They are on the bank of the Rondout, and offer every facility 
for easy transport. These and other kilns in Ulster county probably 
make 40,000 bushels per annum. 
The beds of limestone that yield hydraulic cement are extensively 
worked in the vicinity of Kingston, Rosendale, Lawrenceville and High- 
Falls. 
Lawrence & Austin, 2 kilns between Kingston landing and Eddyville. 
Benjamin & Co.. 2 " and steam mill for grinding. 
Taylor & Little, 2 " between Kingston landing and Eddyville. 
Thaddeus Phelps, . 3 
McNu]ty& Chapman, 2 
Whiting & Weeks, 2 " 
Dusenbury, 1 " at Eddyville. 
White & Co. . . . „ . 15 " between Kingston and Rosendale. 
, .... 2 " at Bridgeport, near Rosendale. 
Flint, 3 " 1 J miles north of Bridgeport. 
Lawrence & Co. .-13 " at Lawrenceville, near Rosendale. 
O'Neil, 2 " on Coxen-clove creek S. W. of 
■ — — , 2 on Rondout above Lawrenceville. 
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