RT Journal Article SR Electronic T1 Remarks on gravitation, and its relation to a supposed universal force JF American Journal of Science JO Am J Sci FD American Journal of Science SP 254 OP 256 DO 10.2475/ajs.s2-40.119.254 VO s2-40 IS 119 A1 Walling, Henry F. YR 1865 UL http://www.ajsonline.org/content/s2-40/119/254.abstract AB