RT Journal Article SR Electronic T1 Determination of the acceleration due to the force of gravity, at Tokio, Japan JF American Journal of Science JO Am J Sci FD American Journal of Science SP 124 OP 132 DO 10.2475/ajs.s3-20.116.124 VO s3-20 IS 116 A1 T. C. Mendenhall YR 1880 UL http://www.ajsonline.org/content/s3-20/116/124.abstract AB