GALILEO, HUYGENS, AND NEWTON [304]
FIGURE OF THE EARTH [306]
EARLY TYPES OF PENDULUMS [309]
KATER’S CONVERTIBLE AND INVARIABLE PENDULUMS [314]
REPSOLD-BESSEL REVERSIBLE PENDULUM [320]
PEIRCE AND DEFFORGES INVARIABLE, REVERSIBLE PENDULUMS [327]
VON STERNECK AND MENDENHALL PENDULUMS [331]
ABSOLUTE VALUE OF GRAVITY AT POTSDAM [338]
APPLICATION OF GRAVITY SURVEYS [342]
SUMMARY [346]