The Barre daily times. (Barre, Vt.) 1897-1959, 1907-10-01
THE GRANITE IN MAINE.
Quarries Produce Annually About ST.
100000 Worth.

beSseOV WbAAh.
Washington, Oct. 1.-The granite
quarries OF Maine produce annually
about s3000no0 worth Of stone. the
value q the output i. single county
reaching 81 100000. The location ~
many of the qnarfies near the seaboayJ.
as well as the character of their pro.
duct, has made Maine granite an I'M
portant building material in the cities
If the Atlantic coast Some of the
quarries furnish building stone and
monumental granite 81 quality 50 ex.
! cellent that their product IL In spec
ia demand The granite industry of
Maine is therefore deserYedly regarded
a. one OF the most valuable assets Of
tie state
Granite ii perhaps the most notable
surface rock III AIaine States, schists,
sandstones. and limestones CT various
types outcrop at many places, but the
mountains and hills Of the interior,
from the giant Katahdin down. and
many of the islands and headlands of
the coast. exhibit slopes and cliffs Of
massive granite Even where otner
kinds Of rock are exposed abundant
granite disks and quartz veins indi
cate the presence Of granite at no great
distance
The results Of an investigation Of
Tue scientific and economic features
of the Maine GRANTEES, undertaken by
eue United States Geological Survey al
the request Of and in co operation
with the Maine State Survey Commits
sion. are embodied in report just
issued by the National Survey as Bul,
letin No 3t3.
atpelg petrologic discussion Of the
GRANTEES and associated rocks forms no
part of tots report, and chemical com
pisition might affect the durability of
the stone The observations on the re-
h,ons Of the bands Of knots to flow
structure III the granite, on the paral-
lenam Of banding with Shooting and rift
on relation of sheeting to the surface
Of the rock and on the spacing and dis
tlibuti0n of the joints, furnish data of
hi- scientific value, which can be used
by the geologist who is interested in
the physics Of intrusion Several Of
t.,ese same observations can be utilized
by quarry superintendent also For
example, the value of quarry site Is
largely dependent ON the Joint system,
and an understanding of distribution
o. knots or other imperfections in the
stone viii guide quarry operations. The
discussion of the cause of the discolnrag
ton termed sap" also has a practical
value, - well as the suggestion as to
the use that can be made Of granite 80
diseolored
The report proper is the work Of
Prof T. Nelson Dale, who collected The
material for the local details and de
scriptions Of quarries in three months
in 1905. during which time he Visited
129 quarries and prospects. The paper
is preceded by u brief introduction, de-
scribing the geographic distribution and
general geologic relations Of the GRANTEES
BY George Otis Smith, now Director Of
the Survey, who planned and directed
the investigation. The arrangement Of
the data presented by Professor Dale is
believed 10 favor it's use BY all classes
Of readers, the broader facts set forth
in the classification and description 81
the GRANTEES being separated from the
local details relating 60 individual quar-
ries. The enleavor haf been 10 pre-
sent all Of the essential facts relating
be- the GRANTEES of Maine, SO that the
students as well as the architects, con
tractors, and quarry owners.
Similar bulletins. describing the
GRANTEES Of other parts Of New Eng
land, are now in preparation by Pro-