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266
Report of the Medical Officer of Health
The Chart here inserted presents in a graphic form this average
composition. It will be seen that the usual features of lowest fat
in May and June, and lowest solids-not-fat in July, August,and
September are well illustrated. For the whole year the average
c.. mposition proved to be:—
Milk-fat 3.54 per cent.
Solids-not-fat 8.78 per cent.
Butter.
Of the 189 samples of butter submitted, 31, or 16.4 per cent.
Nature of
the adulteration
reported.
were reported as adulterated. In the majority of
these cases the adulteration proved to consist of
the substitution of margarine for butter, and in five cases only
were mixtures of butter and margarine met with.
All samples were examined for the presence of a Boron
The presence
of Boron
preservative.
preservative, and this was found in 07 *0 per cent,
of the samples submitted. In no case, however,
was the amount found to exceed 0.5 per cent. (equivalent to 35'0
grains per lb.).
Details in respect to the adulterated samples are given in
Table C.