RT Journal Article SR Electronic T1 Dall's observations on Arctic ice, and the bearing of the facts on glacial phenomena in Minnesota JF American Journal of Science JO Am J Sci FD American Journal of Science SP 358 OP 360 DO 10.2475/ajs.s3-21.125.358 VO s3-21 IS 125 A1 Winchell, Newton Horace YR 1881 UL http://www.ajsonline.org/content/s3-21/125/358.abstract AB