that seemedto have been poured among them. Asthe work proceeded, the sides had to bepropped with a strong palisade made oftree trunks cut from the surrounding bush, to prevent the loose stones from falling on the laborers. [Plate 2.] — * < • > *i Oxalic Acid. Oxalic acid we obtain mostly from… … connection with hydrate of potassium, etc. Oxalic acid isin colorless and odorless crystals, with a strong sour taste.It is soluble very slotvly in eight parts of cold water to onepart of oxalic acid, but is easily soluble in hot water. It isvery poisonous, and many cases of poisoning have…
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