g the disk with the an artificial limb that shall imitate with precision the ten, reasons which it is not necessary to repeat here. finger so as to bring the pictures successively under movement of the natural member. Very few of our If the identity can be proved, there are several inter- the lens,… … for many years past. It is generally becoming work is cut from a solid piece of high grade metal and The full sized instrument is given in Pig. 2, from the known that Mexican onyx is not true onyx, but a spe- is without rivets, thus making it light and very strong. side of which one edge of the…
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