RT Journal Article SR Electronic T1 Geological relations of the limestone belts of Westchester County, New York JF American Journal of Science JO Am J Sci FD American Journal of Science SP 194 OP 220 DO 10.2475/ajs.s3-20.117.194 VO s3-20 IS 117 A1 Dana, James D. YR 1880 UL http://www.ajsonline.org/content/s3-20/117/194.abstract AB