PT - JOURNAL ARTICLE AU - Carl Barus TI - The contraction of molten rock AID - 10.2475/ajs.s3-42.252.498 DP - 1891 Dec 01 TA - American Journal of Science PG - 498--499 VI - s3-42 IP - 252 4099 - http://www.ajsonline.org/content/s3-42/252/498.short 4100 - http://www.ajsonline.org/content/s3-42/252/498.full SO - Am J Sci1891 Dec 01; s3-42