170 —- Report on the Geological Survey of Connecticut. 
as fort or block-stone. Large quantities are shipped from the quar- 
ries situated immediately on the banks of the Connecticut and the 
Thames, to be employed in New York and in the public works along 
the coast. The quarries on the east side of the river at Haddam 
are particularly engaged in this business, and employ forty or fifty 
men. lLorp’s quarry in Lyme is well located for affording this 
kind of stone. In 1832 and 1833 it employed upwards of thirty 
hands, being then engaged in furnishing stone for the construction of 
canal-locks in New Jersey. The stone for the foundation-work of 
the Merchants’ Exchange in New York was supplied during the 
Jast season from this quarry. 
_‘-Cuapman’s quarry of granitic-gneiss on the east side of the 
Thames in Groton, a few miles above New London, is also exten- 
sively engaged in furnishing block-stone. Twelve hands were em- 
ployed here last summer. The stone is quarried at. an expense of 
twelve cents the foot, and its freight to New York costs from six to 
eight cents, A quarry for similar stone on the opposite of the river 
in Waterford, was worked five years ago to furnish stone for the 
’ public works at Pensacola. Common building stone is extensively 
quarried also. at Greenwich, both for the construction of public works 
and for ordinary building in the city of New York.” s<..s 
The verd antique marble of Milford is a beautiful crninniate) 
bein inexhaustible variety. It is not fitted for outside decoration, 
Because its fine colors become dull in the weather, but within doors 
they are permanent. It is true that all the marble obtained at Mil- 
ford is not verd antique; but we cannot agree to confine it within 
the narrow limits drawn by Mr. Shepard, as we are sure it is not so 
limited in the fine tables, sass &c. seen in Europe, and sometimes 
in this country, 
Stones for Flagging, Tiling, §¢.— The flagging-stone of the 
State is referable to the following rocks,—gneiss, micaceous quarta~ 
rock, mica-slate, and sandstone slate; and together constitute-a 
resource fully equal to its building-materials. The quarries of gneiss 
on the Connecticut river rank very high in importance, not only on 
account of the intrinsic excellence they possess, but from their proxi- 
mity totheriver. They are situated at Middletown, at Chatham, at 
Haddam on both sides of the river, and also at Chester, Hadlyme 
and Essex; and they are remarkable for the uniformity of their — 
charcer in every place where they are explored in these towns, 
t in Madison, where extensive quarries 
ales exist. It js difficult to eseeciein the number of hands aplssed 
