RT Journal Article SR Electronic T1 Experiments upon the constitution of certain micas and chlorites JF American Journal of Science JO Am J Sci FD American Journal of Science SP 378 OP 386 DO 10.2475/ajs.s3-43.257.378 VO s3-43 IS 257 A1 Clarke, F. W. A1 Schneider, E. A. YR 1892 UL http://www.ajsonline.org/content/s3-43/257/378.abstract AB