PT - JOURNAL ARTICLE AU - Williams, Henry Shaler TI - On the age of the manganese beds of the Batesville region of Arkansas AID - 10.2475/ajs.s3-48.286.325 DP - 1894 Oct 01 TA - American Journal of Science PG - 325--331 VI - s3-48 IP - 286 4099 - http://www.ajsonline.org/content/s3-48/286/325.short 4100 - http://www.ajsonline.org/content/s3-48/286/325.full SO - Am J Sci1894 Oct 01; s3-48