Take 50 parts, by
weight, of caustic soda of 70 percent, and free from carbonic acid, if
possible; 200 parts, by weight, of sweet almond oil; 160 parts, by weight,
of glycerine of 30° be.; and sufficient distilled water to make up 1,000
parts by weight. First, dissolve the alkali in double its weight of water,
then add the glycerine and oil and stir together. Afterwards, add the
remainder of the water and keep the whole on the water bath at a temperature
of 140° to 158° F., for 24 to 36 hours; remove the oil not saponified, which
gives a gelatinous mass. Mix 900 parts, by weight, of it with 70 parts, by
weight, of 90 percent alcohol and 10 parts, by weight, of lemon oil, and as
much of the oil of bergamot and the oil of vervain. Heat for some hours at
140° F., then allow cooling and filtering on wadding to eliminate the
needles of stearate of potash. The liquid after filtering remains clear.
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