PT - JOURNAL ARTICLE AU - Edward Salisbury Dana TI - On new twins of staurolite and pyrrhotite AID - 10.2475/ajs.s3-11.65.384 DP - 1876 May 01 TA - American Journal of Science PG - 384--387 VI - s3-11 IP - 65 4099 - http://www.ajsonline.org/content/s3-11/65/384.short 4100 - http://www.ajsonline.org/content/s3-11/65/384.full SO - Am J Sci1876 May 01; s3-11