282 T. N. Dale—Geology of Phode Island. 
Art, XXXIL—A Contribution to the Geology of Rhode bland ; 
by T. Nretson DAL. 
[Continued from page 228.] 
Dutch Island.—The mica schist and conglomerate of 116, 
Beaver Head, recur here at 128; the conglomerate, measuring 
two feet, reappears at 129; the mica schist is garnetiferous, 
plicated and folded. These plications characterize the whole 
east side of the island. A remarkably fine section of them is 
exposed at a small recess between the upper and lower docks, 
130, where, in a cliff fifteen feet high, the schists are folded 
two or three times, the last fold being directly over the first, 
and the strike N.N.E. At one place a fold has ruptured and 
a fault ensued. Portable and most instructive specimens of — 
plicated schist can here be obtained. One such, measuring 
now 54’’X10” x# inches, when each bend is measured, gives 
are 
1 
no outcrops. At 134, two beds of highly carbonaceous 
and graphitic schist, separated by a layer of light colo 
