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Scientific American, Vol. 21, No. 26 (1869) (1869)

leaf 5

An illustration from Scientific American, Vol. 21, No. 26 (1869), 1869, leaf 5
on of the point of the ad- can Patent Agency; the one on the electro-magnet bearing each of salt and alum in a little hot water, and put intoa tub justing screw, H, which limits the motion of the principal date Nov. 9, 1869, and the patents on the key and sounding of cold water sufficient to cover… … LI I mnt Something in the tone of your letter makes me answer, and Patent Office Affairs. unwilling te leave it unanswered, I write to say that the The report of the Secretary of the Interior furnishes the statement you sent me is false. In some opening remarks of separated by a coiled spring from…

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