Q2 NEW YORK STATE MUSEUM 
start, but which within a very short distance turned rapidly to 85°, 
so that the greater part of the shaft is almost vertical. 
The ore body pitches northeast at an angle of 26°; it should be 
observed in this connection that the ore body in the Cook mine, 
directly south of the Scott, is almost vertical, the Cook shaft lacking 
the initial incline of the Scott, while the Augusta ore body, south 
of the Cook, is much flatter. This is suggestive of a form for the 
ore body which is shown in figure 10, although no attempt has been 
made to represent the dislocations which have been caused by 
faulting. 
A new vertical shaft, sunk 600 feet in rock, about 100 feet west of 
the ore-belt and approximately 400 feet north of the original shaft, 
taps the various levels of the mine and facilitates operations. 
The ore is raised in 3-ton skips by an electric hoist. It was 
originally intended to concentrate the leaner ore on the ground in a 
Ball-Norton mill of the same type and capacity as the one in opera- 
tion at the Lake mine; this mill has not yet been erected, however, 
so that any ore needing concentration is sent to the magnetic con- 
centrator. at the Lake mine over an extension of the Sterling 
Mountain Railroad, operated by the company. 
The walls of the ore body are modified Pochuck-Grenville, so 
heavily injected in many places with coarse pinkish pegmatite that 
the pegmatite itself acts as the wall for some distances; it occurs 
indifferently in either wall. The ore is massive, rather finely 
crystalline, blocky magnetite, very closely jointed and carrying, in 
common with all the magnetite from the different mines, still unre- 
placed remnants of Pochuck-Grenville (see plate 1, figure 2), con- 
sisting of irregular patches of quartz surrounded with replacement 
aureoles of chlorite, corroded remnants of a colorless, magnesian- 
bearing pyroxene, some partly and many wholly serpentinized, and 
a very small quantity of both pyrrhotite and pyrite, and a little 
apatite, co-related to the magnetite. 
The ore and the pegmatite are closely associated and intergrown, 
the ore cutting the pegmatite in places, and the pegmatite cutting the 
ore in turn, each sometimes fading out in stringers in the other. 
According to figures obtained at the mine, the shipping ore carries 
from 58.50 to 61.0 per cent of iron, and from 0.35 to 0.61 per cent 
of phosphorus. The ore body averages 10 feet in thickness; it is 
worked by a series of drifts in either direction along the strike, by 
raises and by stoping. It was stated that the distance along the 
levels (in the direction of strike) is 4000 feet; this probably includes 
the Cook workings. 
