492  CONTRIBUTIONS    TO    ECONOMIC    GEOLOGY,  1904.  [bull.  260. 
furnish  large  blocks  of  stone.  Several  of  the  quarries  ship  blocks 
weighing  from  15  to  80  tons.  The  Boctwel]  Granite  Company  fur- 
nished the  General  Wool  monument  in  Troy,  N.  Y.,  which  is  60  feet 
in  height  and  5J  feet  square  at  the  base.  The  discarded  duplicate 
block  remains  at  the  Sands  quarry  and  measures  65  feet  in  length  and 
5|  feet  square  at  the  base,  tapering  gradually  to  about  3J  feet  at  the 
lop.  The  columns  for  the  Cathedral  of  St.  John  the  Divine,  in  New 
York  City,  were  quarried  at  the  Palmer  quarry  of  the  same  com- 
pany. The  rough  blocks  for  these  measured  60  feet  by  6  by  6,  and 
weighed  about  185  tons.  One  of  these  huge  blocks  was  successfully 
turned  in  the  giant  lathe,  but  split  after  being  finished  and  removed 
from  (he  lathe,  On  this  account  the  columns  were  turned  in  two  sec- 
lions.  In  this  quarry  the  spacing  of  the  joints  is  such  that  thick 
blocks  are  available  even  at  the  surface, 
The  principal  markets  for  the  Penobscot  Bay  granite  are  Boston, 
New  York,  Philadelphia,  and  Washington.  Each  of  the  larger 
quarries  has  furnished  the  dressed  granite  for  many  large  and  well- 
known  buildings  in  these  cities,  while  a  few  buildings  have1  been 
erected  of  this  granite  in  Chicago,  Milwaukee,  St.  Louis,  and  other 
Western  cities.  Contracts  that  are  being  worked  on  at  present 
include  the  New  York  bridges,  the  custom-house  in  New  York,  and 
the  Naval  Academy  at  Annapolis. 
In  conclusion,  attention  may  be  called  to  another  phase  of  this 
industry.  Its  value  to  the  community  is  not  fully  expressed  by  the 
mere  statement  of  annual  production.  It  is  necessary  to  add  that 
labor  receives  over  80  per  cent  of  the  value  of  the  product  of  these 
quarries. 
