John M. Thatcher, of New York City, has peti- solubility of the mercuric sulphocyanide in the chlo- The engraving shows a new plan of propelling boats with oars. They ‘¢ Perhaps I may be are so fixed that the excused for adding that rower faces the bow, and sulphocyanide of ammo- is able to direct… … the Scientific American phide of carbon yields, Patent Agency, Sept. 12, by this process, exactly 1865, by R. Smith; a working model may be seen by one Ounce of sulphocyanide of ammonium.” on the 23d day of March, 1852, and reissued the 11th applying to him at No. 189 Front street, Brooklyn, day of…
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