RT Journal Article SR Electronic T1 The topography and geology of the Cross Timbers and surrounding regions in northern Texas JF American Journal of Science JO Am J Sci FD American Journal of Science SP 291 OP 303 DO 10.2475/ajs.s3-33.196.291 VO s3-33 IS 196 A1 Hill, Robert Thomas YR 1887 UL http://www.ajsonline.org/content/s3-33/196/291.abstract AB