Science hu* already found certain j uses for Mr Edison’* later inventions, however. The phonograph counterfeits permanently many sounds that are useful to therapeutics; the normal and unsound heart-beata, '•rales*’ in the lungs, certain vocal sounds depend- j ing ujxm special conditions of the ! throat or tonsils. It. is of decided benefit to science t i have permanent records that can always be easv of access without recourse to a sj»eeial patient. In tin* same way the kineto-M*»»p»* promises to be of great utility to medical science by reproducing physical action that can be studied in detail or comprehensively as the student de*! sires. In this city some effort in that direction has already been undertaken, and more will Ik* developed from time to time, especially in nervous disorders 1 that bring on certain physical action ! that is often so violent and vigorous as to baffle any attempt at close study by means of the unaided eye.The Muybridge photographs showed some years ago that the eye was unreliable for the detection of the absolute i details of rapid animal motion. Instantaneous photography alone gives a correct representation of the different attitudes taken by tnlt;*n or animals in rapid action, and it is quit** possible that me iieal science may achieve fresh discoveries by the help of the kineto-j *eojH*. Thus in studying the muscular action that results from certain nerve disorders, it may Ik- possible to trace j the nerves which are affected. Kven ! in less complicated eases, like lame* j ness, u sur/e tn mav Ik* able to reach conclusions with greater quickness and certainty by securing?* the details of muscular action of the affected limb, as the speed of the kinetoseojie may he regulated at will. Altogether, then, while the reproduction of errand opera for the multitude may be a matter of the remote future, the ki nc toseope is something? of more use to civilisation | than a mere pictorial toy.—lioston Advertiser.