SCIENTIFIC SURVEY. 



239 



great amount, and quarried. The other bed noticed was not as 

 good, and is in the north part of the town near Congress mountain. 

 The other beds in town have been thus described : "On the west- 

 ern side of the St. George river on Mr. A. Starrett's estate, there 

 are two beds of limestone, the largest of which is twenty feet wide, 

 dipping 18° south-easterly. They are dolomitic, and contain crys- 

 tals of galena and zinc blende. On the eastern side of this river 

 upon Mr. A. Starrett's land, there is a similar bed of limestone, 

 99 feet wide, and 150 feet long, as exposed. Another bed belong- 

 ing to John Starrett, is 122 feet wide, and has been uncovered for 

 220 feet. It is inclined 55° S. E. On Benjamin Starrett's land 

 there are two beds of limestone, one of which is 30 feet wide, dip- 

 ping about 55° S. E, On a high bank of St. George river a cliff of 

 limestone is exposed, 26 feet high, and traceable lateral!}^ half a 

 mile. It is half a mile north-west from A. Starrett's bed." All 

 these beds of limestone are white, and often highly crystalline. 

 One would think that a better quality of lime could be manufac- 

 tured from such pure material, than from the darker-colored and 

 coarser-looking limestones of Thomaston, etc., which are so cele- 

 brated in the market. Experience, however, is the only reliable 

 test of the best quality of rock for the manufacture of quick-lime. 



Quite a number of excellent beds of limestone are found in 

 Union. Large beds are found upon Harding's point at the south- 

 west side of Crawford's pond, in the south part of the town, one 

 of which is nearl}^ a hundred feet wide and over three hundred feet 

 long. Near Union Common, upon Capt. N. Batchelder's estate, is 

 a large bed thirty feet wide and nine hundred and twentj'-four feet 

 long. It has a bluish tint, and is very saccharoidal. In the south- 

 east part of the town, near Mr. Miller's, are two large beds of 

 limestone, both being in the same range. It has been dug into in 

 several places. The dip common to all the outcrops is about 65° S. 

 60° E. A large granite vein crosses the limestone, the first in- 

 stance of the kind we have ever seen. The limestone is a fine- 

 grained light gray rock, and the width of the bed varies from ten 

 to thirty feet. It must be twenty rods long. Near it are scattered 

 smaller beds, often of no value. Upon the Bullen farm, to the 

 north-west, is abed of limestone fifty feet wide, quite firm, and 

 might be wrought to a limited extent as a marble. It has been 

 traced over a thousand feet. It dips 80° N. W., and has been 

 quarried in three places. Another bed appears on the north side 



