676 P. REPORT OP PROGRESS. LEO LESQUEREUX.

in two or three localities : Mazon Creek, Morris, Cannelton,Clinton, etc., while besides the three mentioned above, tenare present both in the anthracite and the bituminous.

§56. The anthracite bed of Rhode Island is still left forconsideration. Do the plants obtained from it indicate itsgeological station ? We have from the coal twenty-sevenspecies, three of which only are proper to it; of the others,twenty are identified in the group A. Though a numberof them are of wide distribution, the reference of the coalof Rhode Island to the lower group A seems positive, sofar as one may rely on evidence based on such scanty ma-terials.