VOLUME 6.) [NUMBER 14. brought as near to the bank as possible, with THE Scientific American, the drum, I, close to it. Rotary motion is giv- CIRCULATION 16,000. … This improvement is the invention of Mr. for the purpose of surveying tne Isthmus and circular direction; and at that time itis in- This machine can be used in many situa- Martin Newman, 2nd, of Lanesboro’, Pa., and tended to perform its operation, being return- tracing the railroad. They form only…
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