E. Hitchcock on the Coal of Bristol Co., and R. Island. 333 
10. In Providence-—The same gentleman, in boring for 
water, in the north part of Providence, at the depth of sixty feet, 
struck a bed of coal dipping N. E. 45°, which is ten feet thick, 
and of the same general character as that at Valley Falls, which 
is known to burn well. 
. In Cranston, R. Island.—This town is on the west side 
of Narraganset Bay, along which the coal rocks extend as far as 
Warwick. In Cranston, according to Dr. C. T. Jackson, ‘slate, 
graphite, and impure anthracite,” are found in an excavation seven 
oreight feet deep. Coal plants are very abundant on Warwick 
Neck ; but no coal has been found. 
12. In Bristol, R. I—The coal bed in this place is in the west 
part of the town, and the spot where it crops out is only a few 
feet above the harbor. It was discovered in sinking a large well. 
Although I descended into it, I could not ascertain the thickness 
of the bed, nor with accuracy its strike and dip. Approximately 
it runs N. a few degrees E., and dips westerly about 48°. ‘The 
coal did not appear to me to be as much crushed as in some mines, 
and seems of an excellent quality. 
13. Portsmouth Mine, or Case’s Mine, in Rhode Island.— 
This mine, situated in the northeast part of the island of Rhode 
Island, was opened in 1808, which was earlier than the Pennsyl- 
vania mines were explored. At that time the mode of burning 
anthracite was not known, and the coal was not sought after, and 
the work was abandoned in 1813 or 1814. Some years after- 
° E.; dip 35° southeasterly. Mr. Clowes, however, says that 
the beds run N. E. and 8. W., and dip from 40° to 90° southeast. 
the dip of the bed now wrought, varies from 28° to 35° S. E. 
hree beds of coal occur, only one of which has been wrought 
by the Aquidneck Coal Company, which bed, I was told, varied 
