88 ECONOMIC GEOLOGY. 
In Canterbury, this rock has been quarried near the Boston, Concord, 
& Montreal Railroad, a mile and a half south of the station. A hasty run 
over the ground showed the presence of two beds, each about 25 feet 
wide, separated by hornblendic rocks. One bed has been opened in two 
places. I have been unable to learn anything about the history of the 
work done here, and do not know why the quarry has been abandoned. 
It is very near a railroad, and conveniently situated for working. The 
stone is only partially like that from Francestown, occurring more like 
those in Vermont. 
Circumstances have prevented such exploration of the country between Francestown 
and Canterbury as was anticipated. I have one impression of the relations of rocks to 
the soapstone that may be of value to others. The Canterbury bed lies just above a 
prominent belt of white feldspathic or granitic material. This may therefore be the 
guide to the occurrence of the soapstone. I have observed it in the west part of New 
Boston, and in Hopkinton. (See Vol. II, pp. 589, 159.) 
Other localities of soapstone, of greater or less interest, are in Richmond, on land of 
Lorenzo Harris ; boulders in Hampstead, Pelham, and Dracut, Mass. ; and 14 miles east 
of E, Hill’s in Swanzey. This last named bed has not been mentioned heretofore, and 
is not located upon the map. I have no facts in regard to it to present. 
Orford. Five beds of soapstone occur in this town, one in the Huronian, the others 
in the Cods mica schists. They are all of good quality. Some facts about them are 
found on pp. 382-4, in Volume II. 
Hfaverhill. The soapstone quarry in Haverhill, now controlled by David Page, is 
situated about three miles north-east of North Haverhill station. It was first opened 
in 1855, and was worked up to the middle of the winter of 1857. About 150 tons were 
taken out and sent to market. The stone was pronounced to be of a fine quality for 
the first opening. The quarry then changed owners, and was not worked again until 
1874, when some 50 or Go tons of the stone were taken to market, and found to be of 
very good quality for all purposes for which soapstone is used. It is claimed that it 
can be brought to a finer edge than that from any other locality in the United States. 
It can be quarried in large quantities, and of almost any dimensions. The Boston, 
Concord & Montreal Railroad is 14 miles distant. 
MANUFACTURE OF GLASS AND POTTERY. 
Excellent materials for the manufacture of glass and pottery are abun- 
dant. The feldspar occurs in the coarse granite veins carrying merchant- 
able mica. This range has been described in Volume II, page 514, ex- 
tending from Easton to Surry, being of a fibrolite mica schist, and is 
