London's Pulse: Medical Officer of Health reports 1848-1972

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Westminster 1897

[Report of the Medical Officer of Health for Westminster]

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15
We consider that when milk is sold containing less than
8.5 % non fatty solids or 2.75% fat, it is the duty of
the Vendor to satisfy the Court that the milk sold is as
milked from the cow and not diluted with water or deprived
of its fat. You assume that for giving the extent of dilution
the comparison should be made with milk containing
12.5 % milk-solids which percentage includes fats as well as
the non-fatty solids. By such a comparison you make the
fat short as well as the non-fatty solids, and to be logical
the milk should have been shown deficient in fat as well as
diluted with water.
The Act of 1875 is silent about the average composition
of milk, but it has been decided in the superior Courts that
the milk mentioned in the Act is that given by the cow
whether rich or poor.
Yours very faithfully,
(Signed) R. BANNISTER.
Dr. Edmunds,
Vestry Hall, Piccadilly, W."
The following letter was then sent to Mr. Bannister:—
[Copy.]
"Vestry Hall, Piccadilly,
November 16 h, 1897.
Re Milk Reference, No. 53.
Dear Sir,
I am much obliged for your letter of yesterday's date,
and am glad to know that the results of our analyses agree.
But I do not see how you arrive at your conclusion.
Will you favour me with the following additional data:—
1. The addition which you made to the non-fatty
solids on account of such decomposition as may have
occurred subsequent to my analysis of the sample on
September 25th ?
2. The standard of reference which you adopted in
order to calculate the percentage of added water ?
Upon judging a milk diluted, do you compare it with
a fair average milk, containing, say, 12.5 percent. of
milk solids ? Or, do you compare it with a milk at some
Other standard; and, if so, what standard ?