acting upon the bind- from the object and the pencil, is completely sup- pressed in the new camera lucida of Commandant H. ing screw, the foot is placed at the point desired, and the apparatus is ready to operate. It is necessary, Blain. Moreover, it is always possible to proportion then, to open… … «m» — It has been patented in the United States and Canada Fig. 2. METHOD OF USING THE APPARATUS. AN INDEPENDENT LATHE CHUCK. by Mr. George M. Aylsworth, of Collingwood, Canada, The Westcott Chuck Co., of Oneida, N. Y., will not and a patent has been applied for in England. It tensity of the light…
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