No. 275.] 
91 
Local Details of the Limestone Beds. 
A small quarry is opened in the white limestone on the farm of Eli- 
jah Martin, two and a half miles WNW of White Plains. M. Cassels 
estimates its surface width at one-eighth of a mile. It is associated 
with mica slate. j 
The West Farms marble quarry is about one and a half miles from 
West Farms. Little is now done there, although the stone is of as 
good quality as is usual for this stone. 40,000 cubic feet of marble 
were quarried there in 1837. The proprietor receives 6i cents rent per 
cubic foot of marble raised. Some large blocks have been quarried, and 
from appearances more may be procured with little labor. The value 
of such quarries may be estimated from the rent received by the pro- 
prietor, which for 40,000 feet, the produce of last year, gives $2,500 
for one year's rent. The excavation is small, and apparently the open- 
ing of the quarry is but commenced. The refuse stones of the quarry 
are burnt into lime for manure, with dust anthracite coal, which can be 
purchased at the coal ykrds in New- York for 75 cents per ton. 
The Eastchester marble quarry is near the road from Whit©: Plains to 
New- York, and near the left bank of the Bronx river. The marble is 
white and crystalline, and is distinctly stratified, though some ot the 
strata are several feet thick. The dip is about 80° westwardly. The 
strike north 32° east. It is worked by Kane and Morgan, and there 
are few quarries in the country more extensively worked. They sell 
about 60,000 to 70,000 cubic feet of marble per annum, a large por- 
tion of which is in large blocks from two to twenty tons weight, for 
columns and cornices of large buildings. The heavy blocks wrought 
into the forms required sell for from $4 to $5 per cubic foot. The 
smaller ones for $1 per foot. This quarry affords great facilities for ob- 
taining large masses. At the time of my visit, they were quarrying a 
block 150 feet long, 8 feet thick and 7 feet broad. This was then to 
be blocked up into such sized and shaped masses as might be desired, 
and which can be done with little waste. It was estimated that this 
block would be worth $20,000. This quarry was opened in 1822, and 
has been more or less extensively worked to the present time. The 
marble is transported five to six miles, and then shipped to New- York 
and other places. 
The Limestone of Bedford, 
This was examined by Prof. Cassels. It is white and gray in differ- 
ent beds, crystalline, and not easy to crumble by the action of the wea- 
