Geodesy. Relative determinations of gravity with half-second pendulums and other pendulum investigations, by G.R. Putnam, with a report on a geologic examination of some of the gravity stations, by G.K. Gilbert. (Its Report for 1894, app. no. 1)
Geodesy. Relative determinations of gravity with half-second pendulums and other pendulum investigations, by G.R. Putnam, with a report on a geologic examination of some of the gravity stations, by G.K. Gilbert.