RT Journal Article SR Electronic T1 On the damming of streams by drift ice during the melting of the great glacier JF American Journal of Science JO Am J Sci FD American Journal of Science SP 178 OP 180 DO 10.2475/ajs.s3-11.63.178 VO s3-11 IS 63 A1 James Dwight Dana YR 1876 UL http://www.ajsonline.org/content/s3-11/63/178.abstract AB