Tissandier, Gaston, 1843-1899, Frith, Henry, 1840-, Harry Houdini Collection (Library of Congress) DLC · London, New York [etc.] Ward, Lock & Co · leaf 330
one, and iseasily found when vegetable juices, which ferm ent, areexposed to the air, or when wood and othe r vegetablematter is subjected to the process of dry distillation.Vinegar contains acetic acid, which is distilled from wood,as we shall see presently. Vinegar is made abroad bymerely… … vinegar ground. weeks, until the contents have become quite sour. Theliquid is then cleared by isinglass. The vinegar of com-merce contains about 6 per cent, of pure acetic acid, andsome spirit, some colouring matter, and, of course, water.Wood vinegar (pyroligneous acid) is used for pickles.The…
Scientific recreations
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