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39
the fact that a good deal of the Demerara Sugar does not show any
appreciable proportion of tin, there seems no reason why quantities
such as one grain per lb. and upwards should be tolerated.
Some of the Margarines examined were subjected to detailed
investigation to determine as far as possible the nature of fats from
which they were prepared and confirming the presence of Vitamin A.
The reports were sent to the Medical Officer of Health dealing as far
as possible with the relative merits of the different types.
Close watch has been kept for various additions and impurities
such as preservatives and metallic contamination in a wide variety of
products, but apart from tin in sugar, a small amount of copper in
some Beans and Tomato Sauce, there have been no matters to complain
of, and it is right to say that in general the food sold within the
Borough is of very good quality. There is very little deliberate
adulteration and cases of impurity or of unsatisfactory quality are
comparatively rare.
The rate of adulteration is just under 5 per cent., which is not
unduly high, especially when it is remembered that the Inspectors
quite naturally take samples of articles which are liable to be adulterated
rather than of those which experience has shown to be of good
quality.
I have the honour to remain,
Your obedient servant,
(Signed) H. E. COX,
Borough Analyst.