RT Journal Article SR Electronic T1 Tertiary changes in the drainage of southwestern Virginia JF American Journal of Science JO Am J Sci FD American Journal of Science SP 21 OP 29 DO 10.2475/ajs.s3-48.283.21 VO s3-48 IS 283 A1 Marius Robison Campbell YR 1894 UL http://www.ajsonline.org/content/s3-48/283/21.abstract AB