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

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Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London

Croydon 1932

[Report of the Medical Officer of Health for Croydon]

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77
The following tables summarise the results of the bacteriological
examination sof Pasteurised milk samples from 1st
January to 31st December, 1932 : —

Table: Table XXV.

Table XXV.

PASTEURISED MILK. (licences granted under the Milk (Special Designations) Order, 1923).1 Present.Absent.Over 100,000 per c.c.Under 100,000 per c.c.Present.Absent.Present.Absent.Present.Absent.Exceeding a trace.Not exceeding a trace.
Tubercle bacillus...132
Total number of bacteria5127
Bacillus coli5478
Blood...132
Pus...132
Detritus....132
13251275478...132...132...132

Table: The above 132 Pasteurised Milk samples contained bacteria per c.c. as follows:—

The above 132 Pasteurised Milk samples contained bacteria per c.c. as follows:—

Under 1,0002
1,000—5,00037
5,000—10,00029
10,000—20,00028
20,000—30,00013
30,000—50,00013
50,000—100,0005
Over 100,0005
132

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I nder the Regulations Pasteurised Milk must not contain more
than 100,000 bacteria pei c.c.
There were 6 samples of Sterilized Milk taken during 1932.
Itacillus Coli was absent in each case, and the bacterial content
was as follows*—
3 samples contained Nil bacteria per c.c.
1 sample contained 80 bacteria per c.c. #
1 sample contained 100 bacteria per c.c.
1 sample contained 160 bacteria per c.c.