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Secretary of War Henry Knox (1750-1806) writes to acting governor of the Northwest Territory [i.e. Ohio] regarding the supply of powder, "My dear Sir, I wrote to General Wilkinson on the 3d of April, to have all the powder at Fort Washington proved with a 5½ inch Howitzer or Mortar and 24 pound shot - according to the mode, you must be well acquainted. It is of importance to me personally that this experiment be made, as Colonel Darke has raised clamours about the powder of the last year. I request therefore that you would attend this examination, and certify upon oath the quality..."