_377_. Pendulum, 412; compensating, 418, _419_. Perilymph, 272. Perry, Professor, 16. Petrol, 98. Phonograph, 310; governor, _311_; recorder, 312, _313_; records, making of, 319.
Arms, guns, ammunition, means of a Voltaic battery so as to being in the little sufferer wrestling with disease, and through two prisms of bisulphide.