RT Journal Article SR Electronic T1 Note on the vapor-tension of sulphuric acid, with the description of an accurate cathetometer microscope JF American Journal of Science JO Am J Sci FD American Journal of Science SP 301 OP 303 DO 10.2475/ajs.s3-40.238.301 VO s3-40 IS 238 A1 Perkins, C. A. YR 1890 UL http://www.ajsonline.org/content/s3-40/238/301.abstract AB