PT - JOURNAL ARTICLE AU - Perkins, C. A. TI - Note on the vapor-tension of sulphuric acid, with the description of an accurate cathetometer microscope AID - 10.2475/ajs.s3-40.238.301 DP - 1890 Oct 01 TA - American Journal of Science PG - 301--303 VI - s3-40 IP - 238 4099 - http://www.ajsonline.org/content/s3-40/238/301.short 4100 - http://www.ajsonline.org/content/s3-40/238/301.full SO - Am J Sci1890 Oct 01; s3-40