Note 97 — DEVELOPMENT OF GRAVITY PENDULUMS IN THE 19th CENTURY

Reported by Dr. F. Kühnen to the fifth session, October 9, 1895, of the Eleventh General Conference, Die Internationale Erdmessung, held in Berlin from September 25 to October 12, 1895. A footnote states that Assistant O. H. Tittmann, who represented the United States, subsequently reported Peirce’s prior discovery of the influence of the flexure of the pendulum itself upon the period (Report of the Superintendent of the U.S. Coast and Geodetic Survey for 1883-84, Washington, 1885, app. 16, pp. 483-485).