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Margarine.
Four samples contained mineral oil varying in amount from 10 to
15 per cent.
This is an objectionable form of adulteration. Mineral oil may be
useful for medicinal purposes, but being indigestible it. has no food value.
American Apples.
In the early part of the year special attention was called to the sale
of American apples which had been treated with arsenical spray for
insecticidal purposes. Thirteen samples were examined and in 4 cases
arsenic was found to be present to the extent of 1/25 to 1/50 grain per lb.
Cocoa.
The question of cocoa was commented upon in the 1923 Report.
In spite of cautions many vendors still continue to sell an article
as "pure" cocoa which is a compound containing added alkali.
Pure cocoa should be a powder produced by grinding the cacao bean
after removal of a portion of its fat by pressure, without the addition
of any foreign ingredient.