RT Journal Article SR Electronic T1 The stratigraphy of the Kansas Coal Measures JF American Journal of Science JO Am J Sci FD American Journal of Science SP 452 OP 466 DO 10.2475/ajs.s3-50.300.452 VO s3-50 IS 300 A1 Haworth, Erasmus YR 1895 UL http://www.ajsonline.org/content/s3-50/300/452.abstract AB