- 1Smithsonian Institution — United States National Museum Bulletin 240
- 2Development of Gravity Pendulums in the 19th Century
- 3Galileo, Huygens, and Newton
- 4Figure of the Earth
- 5Early Types of Pendulums
- 6Kater’s Convertible and Invariable Pendulums
- 7Repsold-Bessel Reversible Pendulum
- 8Peirce and Defforges Invariable, Reversible Pendulums
- 9Von Sterneck and Mendenhall Pendulums
- 10Absolute Value of Gravity at Potsdam
- 11Application of Gravity Surveys
- 12Summary
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