ge finder, which- chines as rapidly as possible, and are advised by cable the superiority of the new screws over the old are con- includes the same area as the plate upon which the im- sidered, it will be seen that Mr. Rogers’ invention that the trials of their machinery at Paris have been pression… … the slot. By this process also the wire used may be a STRAIGHT LINE INDICATOR. several sizes smaller than the finished screw. A new indicator, in which a pencil, by means of a The progress made in the manufacture of wood lens, and the plates are transferred before the impres- very simple mechanism,…
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