PT - JOURNAL ARTICLE AU - William Herbert Hobbs TI - Mineralogical notes AID - 10.2475/ajs.s3-50.296.121 DP - 1895 Aug 01 TA - American Journal of Science PG - 121--128 VI - s3-50 IP - 296 4099 - http://www.ajsonline.org/content/s3-50/296/121.short 4100 - http://www.ajsonline.org/content/s3-50/296/121.full SO - Am J Sci1895 Aug 01; s3-50