QUARRIES IN KENNEBEC COUNTY. 119 
some taper out and overlap. PL IX, Z?, a view of a part of the 
northwest wall of the Longfellow quarry, shows the intersection of 
headings of joint systems C and D. Joints A are spaced from 10 
to 50 feet. B forms a heading 50 feet wide on the southeast wall, 
weathered yellow to a depth of 50 feet from the rock surface. Joints 
C are spaced from 5 to 70 feet. In a 2- foot heading of C on the 
southwest wall the joints recur at intervals of 2 inches to one-half 
inch and are coated with quartz crystals. Joints D form two head- 
ings, 10 feet wide, on the southeast wall, containing a bed of sand a 
foot thick and 30 feet deep or long. Joints E are discontinuous 
and grooved and polished from motion. Large areas of some of 
the joint planes in the Longfellow quarry are covered with frost-like 
crystallizations of oxides of iron and probably of manganese. The 
rift is horizontal; the grain is vertical N. 25° W., but feeble. A 
2-foot pegmatite dike contains milk-white oligoclase, smoky quartz, 
muscovite, biotite, and 1-inch garnets. Knots occur up to three- 
fourths inch across, exceptionally 1 by 3 inches. The sap is very 
marked along the joints and up to a foot in thickness. The con- 
centric growth of ferruginous discoloration is shown in the heading 
PL IX, B. 
The plant (including both that at the quarries and at the Hallo- 
well cutting sheds) consists of 18 derricks, of which 3 are worked 
by electricity, 3 by hand, and the rest by 6 engines; 2 traveling cranes, 
3f 10 and 20 tons capacity ; 2 compressors, of 180 and 900 cubic feet 
per minute capacity; 11 pneumatic plug drills; 2 1-foot plug drills; 
5 surfacers; 3 polishers; 56 pneumatic hand tools; 1 lathe for stone 
16 by 2 feet, 2 for stone up to 6 by 2 feet; 2 polishing lathes for 
itone 16 by 2 feet, and 3 steam pumps. 
Transportation is effected by cartage 2J miles to railroad or to 
wharf on the Kennebec River at Hallowell, accessible to schooners 
of 12-foot draft. 
The product is used for buildings and sculpture. It lends itself 
remarkably well to statuary and delicate ornamental work, as is 
shown by PL XIV, A, a reproduction of a photograph of a panel at 
the entrance to the Bank of Commerce in New York, and by PL 
XI Y, B, representing a statue recently finished for the Hall of 
Records in the same city. About seven-eighths of the product go 
into building and one-eighth into carved work. The principal mar- 
kets are Chicago and New York. Specimen buildings: Albany 
capitol, Hall of Records (including its statuary), New York; Brook- 
lyn Savings Bank, New York; Masonic Temple, Boston; academic 
and library buildings at United States Naval Academy, Annapolis, 
Md. ; Illinois Trust Company's building, Chicago ; Northwestern 
Insurance Company's building, Milwaukee; post-office at Allegheny, 
