RT Journal Article SR Electronic T1 The magnetic survey of Missouri JF American Journal of Science JO Am J Sci FD American Journal of Science SP 310 OP 312 DO 10.2475/ajs.s3-21.124.310 VO s3-21 IS 124 A1 Nipher, F. E. YR 1881 UL http://www.ajsonline.org/content/s3-21/124/310.abstract AB