MAGNETITE IRON DEPOSITS OF SOUTHEASTERN NEW YORK 105 
shaft 250 feet deep, leading to a sump. The mine is nearly dry, 
however, and not much pumping is necessary. Two electrically 
driven and five air-operated pumps, all in tandem, are used in 
addition to the old Cornish pump. There is no water below 1788 
feet. The skips are hoisted by steam power. 
Owing to the depth of the slope (4500 feet), the present hoisting 
plant has about reached the limit of its power, so that it is con- 
templated erecting an underground station, from which a supple- 
mentary hoist, possibly electrically driven, will permit the ore to be 
raised to the surface in two steps. 
The ore is a compact, fine-textured, rich magnetite, except in 
places already referred to, where it may locally be more or less 
friable, and sometimes coarse; it is moderately high in phosphorus, 
low in sulphur, and non-Bessemer in quality. Smock *™*® gives the 
only analysis the writer was able to obtain covering elements other 
than iron and phosphorus. This is as follows: 
Mronmosctdern Ges Oy) eisreys see ny austere sre a eleie eal 83.56 
SUM OS KO) 3) A MMs dU sy a a A a i a 5.00 
hosphore) anhydride ”(@e20:) ie eee ee ie seis: 2.30 
A\skapeawhingy (NAO) S) ih eae Re ee EN et ee re ae trace 
Mancanousmoxideu Vir @)) ea hey cyan Henna gn ela 0.63 
Aeimey (Ca@) yout bescieny Mauls dha sheer Opell beg 5.51 
Miaerrestagn MeO rian tinder sa aiians aaa iat s yal gs 1.19 
Carhontdioxtden(EO>) see en ee eects CAM 1.05 
Waters GeO) pra olealy. cecreheni loeb heya ata wale, Ls lise: 0.20 
Additional and later results obtained at the mine show that the 
ore averages from 60.0 to 61.0 per cent iron, and ranges from 
0.594 to 0.68 per cent phosphorus, so that the ore is remarkably 
constant in quality and composition. Neither “ pinches nor swells ” 
interrupt the continuity of it, nor is there any indication that the 
end of the ore body is in sight. 
The Tower mine. This mine, on the F. L. Hastings property, 
is situated at the head of a beautiful glacial cirque, 2 miles north- 
east of the Forest of Dean mine in a direct line, and about 1 mile east 
of Long pond and the state road. The mine had been abandoned for 
a long period, but in the summer of 1919 work was in progress at 
the bottom of the incline which was then 95 feet deep on the slope. 
The slope followed the ore down the pitch at an angle of 30°, the 
dimensions being about 6 by 6 feet. There was ore in the bottom, 
in both walls and in the roof of the slope, but at the bottom of the 
mine the footwall rock is exposed. The dip is very steep, 80° to 
148 Smock, J. C. N. Y. State Mus. Bul. 7. 1880. 
