RT Journal Article SR Electronic T1 On the loess and associated deposits of Des Moines, Iowa JF American Journal of Science JO Am J Sci FD American Journal of Science SP 202 OP 223 DO 10.2475/ajs.s3-24.141.202 VO s3-24 IS 141 A1 W J [i. e. William John] McGee A1 R. E. Call YR 1882 UL http://www.ajsonline.org/content/s3-24/141/202.abstract AB