PT - JOURNAL ARTICLE AU - Bayley, William Shirley TI - A quartz keratophyre from Pigeon Point and Irving's augite syenites AID - 10.2475/ajs.s3-37.217.54 DP - 1889 Jan 01 TA - American Journal of Science PG - 54--63 VI - s3-37 IP - 217 4099 - http://www.ajsonline.org/content/s3-37/217/54.short 4100 - http://www.ajsonline.org/content/s3-37/217/54.full SO - Am J Sci1889 Jan 01; s3-37