Davis's manual of magnetism : including galvanism, magnetism, electro-magnetism, electro-dynamics, magneto-electricity, and thermo-electricity (1854)
Davis, Daniel · Boston : Palmer and Hall · leaf 254
theirheight, the sides of the interior oneaie near those of the other duringthe whole revolution. This cir-cumstance is the occasion of its greater speed. 377. Instrument for showing the RevolutionOF Mercury.—The instrument represented in Fig.164, is designed to exhibit the revolution of…
