Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
[Report of the Medical Officer of Health for Westminster, City of]
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Peas.—In 30 samples of peas (tinned and bottled), 20 were found to
contain copper sulphate:—3, 3, 2.8, 2.4, 2.4, 2.3, 2, 2, 2, 19, 1.7, 1.7,
1.6,1.3, .9, .8, .4, .4, .3 and .2 grains per lb.
Soup (various).—In 12 samples of soup (tinned and bottled), 2 were
found to contain tin:—.4 and .2 grain per lb.
Linseed, crushed.—In 11 samples of crushed linseed meal 2 were
found to be deficient in oil to the extent of 16 and 10 per cent.
respectively.
Camphorated Oil.—In 18 samples of camphorated oil, 1 was found
to be deficient in camphor to the extent of 5 per cent.