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35
4 per cent. or over as follows:—A southern borough, 7.9 per cent.; a northern
borough, 12.1 per cent.; a western borough, 13'2 per cent.; a central borough. 13.6
per cent. and three country districts, 22.4, 29'5 and 29.5 per cent respectively.
The analyst of a large County Borough in the west of England writes:—
"There is nothing extraordinary about any sample up to 4.5 per cent.
samples with as much as 4.5 per cent. are frequently obtained in the autumn
and occasionally at other times of the year. Samples exceeding 4.5 per cent.
may be regarded as abnormal."
It will be observed that 12 samples in Holborn last year had fat, content ranging
from 4'6 per cent. to 8.5 per cent.
This high fat content is possibly due in some instances to failure to mix the
milk before sale, so that when taken from a fairly full counterpan, "top milk" is
supplied with an abnormal amount of fat, there being a corresponding deficiency at the
bottom of the pan. It is doubtful whether satisfactory mixing is usually effected by
trying to plunge with ordinary measures used for serving; probably all counterparts
should be supplied with efficient plungers as are many street churns used by milk
carriers.

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