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268
Report of the Medical Officer of Health.
Articles other than Milk, Cream, and Butter.
Of the samples submitted other than milk, cream, and butter,
the number amounted to 136. Of these, 25, or 183 per cent., were
reported as adulterated or not up to the standard, and full details
concerning these are given in Table D.
The two samples included under the heading "Flour" were
The presence of
Calcium 8ulphatc
in Baking Powder
and Self-raising
Flour.
both "Self-raising" Flours. These, together with
the nine samples of Baking Powder, were submitted
on account of the publication during the year of
Dr. J. M. Hamill's Report to the Local Government Board " On
the presence of Calcium Sulphate in Baking Powder and Selfraising
Flour." It will be seen that two only of the samples (Flour
Sample No. 371 and Baking Powder Sample No. 374) were reported
as containing this impurity in excess of the amount recommendcel
as permissible in the Report referred to.
A series of tinned goods were submitted and examined, with
Metallic contamination
in tinned
goods.
special reterence to metallic contamination, but in
no case was the quantity of dissolved tin found to
exceed 2'0 grains per lb.
It is satisfactory to note that of the ten samples of Sausages
Preservatives In
Sausages.
submitted, two only this year were found to
contain a preservative, consisting in both instances
of Boric Acid.
Ten samples of " Drugs " were examined, adulteration being
Drugs.
reported in but one case; namely, Gregory s
Powder, sample No. 119, where Magnesium Carbonate had been
employed in its preparation instead of Magnesium Oxide.
The six samnles referred to as beiner taken under the
Washing Soda.
Merchandise Marks Act consisted of Washing Soda.
Of these, four proved to be genuine, and two adulterated. The
latter, samples No. 510 and No. 512, were found to contain 68.69
per cent. and 45.42 per cent., respectively, crystallised sodium
sulphate, an inert substance devoid of detergent properties.
Table showing in detail the nature of the adulteration or
departure from standard of all samples (other than Milk, Cream,
and Butter) adversely reported on during the year.