134 THE GRANITES OF MAINE. 
became necessary to make each column of two sections, each about 
26 feet long. PL Kill, IL shows the lathe with the firsl full-length 
column in it and three others as originally prepared for it. 
The Webster quarry is in the town of Vinalhaven, on the north 
shore of "Pleasant River," at end of Winter Harbor, in the northern 
pari of Vinalhaven Island. Operator, A. M. Webster & Co., Vinal 
haven. 
The granite is a biotite granite identical with that of the Palme 
quarry, described on page 132. 
* The quarry, opened in L899, is 150 feet X. 30° W. by 200 feet aeros 
and between 10 and 20 feel deep. The tide reaches its lower part 
There are 2| feet of st ripping. 
Rock structure: The sheets, from 5 to 1<> feel thick, dip 10° to 15° 
X. 30° E. Vertical joints -dike X. 30° W. and X. 60° E. The rift 
is vertical, with X. 30° W. course. There arc some knots. A spher- 
ical one measures 5 feet in diameter. Sap is 3 inches thick along 
sheets and joints. 
The plant consists of 3 derricks and 3 hoisting engines. 
Transportation is effected on a graded track 200 feet to wharf that 
admit- schooners of 300 to 350 long tons. PL XII, /l, shows the 
quarry, and a schooner laden with granite. 
The product is used for buildings in New York and Boston. It is 
shipped in the rough. 
The Black {Pleasant River) quarry is in Vinalhaven town, on the' 
south shore of Pleasant River, at end of Winter Harbor, in the north- 
ern part of Vinalhaven Island. Operator, Joseph S. Black, Vinal 
haven. 
The granite is a biotite granite, identical with that of Webster 
quarry and Palmer quarry, described on page 132. 
The quarry, opened in L896, measures 300 feet in a X. 40° W. 
direction by 200 across and has a working face 45 feet high. The 
drainage is used to supply the boiler. There is 1 foot of stripping 
in places. 
Rock structure: The un worked surface above the quarry is very 
free from joints, knots, and veins. The sheets, from 10 to 12 feet 
thick, are horizontal at the working face or back of the quarry, 
but at the front dip 10°-15° W. Vertical joints strike N. 20° E. 
The rift is vertical, with course X. 10 W. Knots are from 6 inches 
to '2 feet 6 inches in diameter. No dikes. 
The plant consists of 3 derricks, 2 engines, and 2 steam drills. 
Transportation is effected by a 350-foot track, with a grade of 10 
feet to wharf. 
The product is used for building, the waste for riprap. It is 
marketed in Xew York, Philadelphia, and Boston. The quarry has 
