[NUMBER 7. VOLUME 6.) road gradually to the centre, and will be found THE Scientific American, a valuable labor-saving machine in making CIRCULATION 16,000. … with the copper; and a precipitate of pure dispose of the bonds recently issued to them longitudinal bars of the frame, and are attach- This improvement is the invention of N. silver, inthe form of a greyish powder, will for eighty-five cents on a dollar; for which ed by bolts which pass through…
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