PT - JOURNAL ARTICLE AU - Marius Robison Campbell TI - Tertiary changes in the drainage of southwestern Virginia AID - 10.2475/ajs.s3-48.283.21 DP - 1894 Jul 01 TA - American Journal of Science PG - 21--29 VI - s3-48 IP - 283 4099 - http://www.ajsonline.org/content/s3-48/283/21.short 4100 - http://www.ajsonline.org/content/s3-48/283/21.full SO - Am J Sci1894 Jul 01; s3-48