RT Journal Article SR Electronic T1 Drift boulders between the Mohawk and Susquehanna rivers JF American Journal of Science JO Am J Sci FD American Journal of Science SP 213 OP 228 DO 10.2475/ajs.s3-49.291.213 VO s3-49 IS 291 A1 Brigham, Albert Perry YR 1895 UL http://www.ajsonline.org/content/s3-49/291/213.abstract AB