RT Journal Article SR Electronic T1 Refraction of light upon the snow JF American Journal of Science JO Am J Sci FD American Journal of Science SP 389 OP 392 DO 10.2475/ajs.s3-45.269.389 VO s3-45 IS 269 A1 A. W. Whitney YR 1893 UL http://www.ajsonline.org/content/s3-45/269/389.abstract AB