»Prepare Mineral Oil Emulsion as follows:

Mix the Mineral Oil with the Powdered Acacia in a dry mortar,add 250mLof Purified Water all at once,and emulsify the mixture.Then add,in divided portions,triturating after each addition,a mixture of the Syrup,50mLof Purified Water,and the Vanillin dissolved in the alcohol.Finally add Purified Water to make the product measure 1000mL,and mix.

The Vanillin may be replaced by not more than 1percent of any other official flavoring substance or any mixture of official flavoring substances.Sixty mLof sweet orange peel tincture or 2g of benzoic acid may be used as a preservative in place of the Alcohol.

For other permissible modifications,see Emulsions á1151ñ.