the picture on a smooth steel plate. The grounding tool is then employed to go over the whole face of the plate for the picture. This tool is formed with a operations have to be repeated a number of times MON IN SHIPBUILDING. and which was he says at 'that time the boldest nuals. Its leaves are ovate very dark green and very thick 1862 SCIENTIFIC AMERICAN INC., 62-09-13

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the picture on a smooth steel plate. The grounding tool is then employed to go over the whole face of the plate for the picture. This tool is formed with a operations have to be repeated a number of times MON IN SHIPBUILDING. and which was he says at 'that time the boldest nuals. Its leaves are ovate very dark green and very thick 1862 SCIENTIFIC AMERICAN INC., 62-09-13

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