156 THE GRANITES OF MAINE. 
The plant consists of 10 derricks, 6 hoisting engines, 1 traveling 
crane, 1 locomotive crane, 2 compressors (capacity 925 and 500 cubic 
feet of air per minute), 6 steam drills, 1 channeler, 12 pneumatic plug 
drills, 10 surfacers, GO pneumatic hand tools, and 1 steam pump. 
•Transportation is effected by two graded tracks, each 1,200 feet 
long, operated by gravity from the quarry part way down the hill td 
the power house, thence by a cable road (Roebling engine) l.J miles 
lono-, to the wharf, which is accessible to schooners of 15-feet draft. 
Heretofore the stone destined for the West has had to be transferred 
to cars at Bucksport, on Penobscot River, 7 miles distant, but the new 
Northern Maine Seaport Railroad, a branch of the Bangor and 
Aroostook, which passes at the foot of the hill, will obviate this 
reshipment. 
Some 1 of the stone quarried ai the Mosquito Mountain quarry is 
finished here. 
The product is used for buildings, and has of late found its chief 
market in the West. 'The small sheets and waste are made into 
paving blocks. Specimen building-: Milwaukee and Indianapolis 
post-offices, Philadelphia mint. Contract in 1905: Cleveland, Ohio, 
post-office. 
The Fernald quarry is in the town of Lincoln, near the north end 
of Lake Megunticook. Operator, E. H. Fernald Granite Company; 
address, Lincolnville R. F. 1). 
The granite (specimen 50, a) is a muscovite-biotite granite oi 
light-gray shade and line (inclining to medium) even-grained text- 
ure, with feldspars up to 0.2, muscovite to 0.15, and biotite up tc 
0.1 inch. The finer particles range from 0.18 to 1.83 mm. in diame- 
ter. The rock consists, in descending order of abundance, of slightlj 
bluish-white potash feldspar (orthoclase and microcline), smok} 
quartz, whitish soda-lime feldspar (oligoclase), white mica (muscO" 
vite), and Mill less of black mica (biotite), together with accessory 
apatite. The oligoclase is much altered to kaolin. The feldspars i 
generally are intergrown with quartz in particles that are circular ii 
cross section. The stone takes a fair polish with a bluish tinge 
although the size of the muscovite plates is against the great dura 
bility of the polish under outdoor exposure. 
The quarry, opened about 1875, measures 100 by 50 feet, and ha; 
a maximum depth of 28 feet. Drainage 4 is effected by pumping oi 
the average half a day per week. The water thus obtained supplie 
the boiler. The stripping in places measures up to 6 feet. 
Rock structure: The sheets, from 6 to 15 feet thick, dip 25° £ 
Vertical joints, striking X. C>0°-o5° W., recur at intervals of 8. \ L , 
and 23 feet; also a joint striking N. C>0°-C>5° E., but not recurrim 
Another one strikes N. G0° W., and dips G0° SE. The rift is vert' 
