me = “a Lea “i VOLUME 6.) [NUMBER 2. The object of this harpoon is, in forming THE SCIENTIFIC AMERICAN, the shank with a joint at its middle part, so Published Weekly, at 128 Fulton, street, N. Y., by that it can be folded up, and the extremity be … cylinder. Another advantage consists in the respect. Experiment is the real test ot the saving of the wear of the valve in running correctness or incorrectness of the operation of down grade, as it can instantly be made mo- any instrument, and as Mr. Albertson has N are serated edges for holding…
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