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 1934

[Report of the Medical Officer of Health for Croydon]

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Table: Under the Regulations Certified Milk must not contain more than 30,000 bacteria per c.c.Table XIV.

Under the Regulations Certified Milk must not contain more than 30,000 bacteria per c.c.

Table XIV.

GRADE A (TUBERCULIN TESTED) AND GRADE a MILKS.Present.Absent.Over 200,000 per o.c.Under 200.000 per c.o.Present in 1/100 c.c.Not present in 1/100 c.c.Present.Absent.Present.Absent.Exceeding a 1 trace.Not exceeding traces
Tubercle bacillus...11
Total number of bacteria...11
Bacillus coli...11
Blood ......11
Pus...
Detritus11...11
...11...11...11...11...a...11

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The 11 Grade A (Tuberculin Tested) and Grade A milks
contained bacteria per c.c. as follows : —
0—1,0003
1,000—5,000 1
5,000—10,000 4
30,000—50,000 1
100,000—200,000 2
11
Under the Regulations Grade A (Tuberculin Tested) or Grade
A milk must not contain more than 200,000 bacteria per c.c.

Table: The following tables summarise the results of the bacteriological examinations of Pasteurised milk samples from Ist January to 31st December, 1934 :—Table XV.

The following tables summarise the results of the bacteriological examinations of Pasteurised milk samples from Ist January to 31st December, 1934 :—

Table XV.

PASTEURISED MILK, (licences granted under the Milk (Special Designations) Order, 1923).Present.Absent.Over 100.000 per c.c.Under 100,000 per c.o.Present.Absent.Present.Absent.Present.Absent.Exceeding a \ trace.| Not exceeding a trace
Tubercle bacillus...129
Total number of bacteria3126
Bacillus coli3495
Blood...129
Pus....129
Detritus....129
...129...1263495...129....129....129