RT Journal Article SR Electronic T1 On the relation of the Laramie group to earlier and later formations JF American Journal of Science JO Am J Sci FD American Journal of Science SP 432 OP 438 DO 10.2475/ajs.s3-35.210.432 VO s3-35 IS 210 A1 Charles Abiathar White YR 1888 UL http://www.ajsonline.org/content/s3-35/210/432.abstract AB