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To Pulverize Camphor

Cam- Camtime, without being reduced to powder, but if it be first broken with the pestle, and then sprinkled with a few drops of spirit of wine, it may be readily pulverized. By adding water to an alcoholic or ethereal solution of camphor, it is precipitated under the form of volatilized, and leaves behind the sulphate an impalpable powder of exquisite whiteness, of lime, which, when mixed with water and which may be collected and spontaneously gently dried, gives the amount of the adul- dried on a filter; the addition of a minute carbonate of magnesia to the out the sulphur with a little hot oil of turpen-water (say 1 drachm for each 16 ounces of tine or liquor of potassa.