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 1935

[Report of the Medical Officer of Health for Croydon]

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224
Grade A (Tuberculin Tested) and Grade A Milks.
Licensed country producers of Grade A (Tuberculin
Tested) milk supplying milk to licensed local
dairymen 6
Licensed country producer of Grade A milk supplying
milk to a licensed local dairyman ... ... 4
Pasteurised Milk.
Samples from Licensed Dealers ... 140
The following tables summarise the result of the bacteriological
examinations of Certified, Grade A (Tuberculin Tested),
Grade A and Pasteurised samples, from 1st January to 31st
December, 1935 : —

Table: T able XIII.

T able XIII.

CERTIFIED MILK.Present.Absent.Over 30,000 per c. c.Under 30,000 per c. c.Present in 1/10 c.c.Not present in 1/10 c .c.I Pre«ent.Absent.Present.Absent.F.xccediDg a trace.Noi exceeding j I a trace.
Tubercle bacillus...10
Total number of bacteria...10
Bacillus Coli28
Blood...10
Pus...10
Detritus...10
...10...1028...10...10...10

Table: The above 10 Certified Milk samples contained total bacteria per c. c. as follows:—

The above 10 Certified Milk samples contained total bacteria per c. c. as follows:—

0—1,0002
1,000—5,0002
5,000—10,0002
10,000—15,0003
15,000—20,0001
10