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Report of the Medical Officer of Health.
87
The average composition of the 729 samples of Milk returned as
genuine during the year was as under:—
Total milk solids 12.39 Per cent
Milk-fat 3.55
Solids-not-fat 884 „
Of the Creams purchased as fresh, 16 were found to contain
Crystallised Boric Acid in amounts varying from 4 9 grains per
pound (0.07 per cent.) to 287 grains per pound (0.41 per cent.).
BUTTER.
698 samples of Butter were submitted during the year, 40
being taken with the necessary formalities required by the Acts,
and 658 being obtained informally.
All the samples reported against were found to contain
Margarine, with the exception of three samples,
Nature and extent
of the adulteration which contained an excess of Boron preservareported
tive.
All samples were examined for the presence of preservatives,
The presence of with the result that out of the 642 samples rePreservatives
tuined as genuine, 139 were found to contain no
preservative other than salt.
The average content of Boron preservative (in terms of Crystallised
Boric Acid) contained in the 503 samples of Butter (reported
as genuine) which contained this preservative amounted to 0.27 per
cent., equivalent to 18.9 grains per lb. Butter.
MARGARINE.
Nine samples of Margarine were submitted, three being taken
with, the formalities required by the Acts, and six being submitted
informally.
The one sample reported against proved on analysis to be
Butter.