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Updated: June 4, 2025
Black woollen cloths are turned to a dirty brown, the edges of the spots becoming red in a few days, due to the dilution of the acid from the absorption of moisture; the stains remain damp for long, owing to the hygroscopic property of the acid. Method of Extraction from the Stomach.
It is perfectly stable, and will keep any length of time absolutely without undergoing any change whatever, under all conditions of temperature or exposure to which gunpowder would ever be subjected. 5th. It is not hygroscopic, and may be soaked in water without being at all affected by it. 6th. It will not corrode the cartridge case. 7th. It will not foul the gun. 8th.
"In our physics work in college, good soils generally lost about ten per cent. in weight by ignition, even after all hygroscopic moisture had been expelled; but these very poor soils haven't much to lose, I guess. They surely contain no carbonates and very little organic matter, although they may contain some combined water." PERCY spent three days in Washington.
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