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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 1933

[Report of the Medical Officer of Health for Croydon]

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Table: The following table summarises the results of the bacteriological examination of ordinary milk samples, taken under the Milk and Dairies (Consolidation) Act, 1915, from 1st January to 31st December, 1933:—

The following table summarises the results of the bacteriological examination of ordinary milk samples, taken under the Milk and Dairies (Consolidation) Act, 1915, from 1st January to 31st December, 1933:—

ORDINARY MILK.Present.Absent.Over 200,000 per c.c.Under 200,000 per o.c.Present in 1/100 c.c.Absent from 1/100 c.c.Present.Absent.Present.Absent.Exceeding a trace.Not exceeding a trace.
Tubercle bacillus19342
Total No. of bacteria79281
Bacillus Coli141219
Blood...360
Pus...360
Detritus...360
1934279281141219...360... 360360

Table: The 360 samples of Ordinary Milk contained total bacteria per c.c. as follows:—

The 360 samples of Ordinary Milk contained total bacteria per c.c. as follows:—

0—1,0005
1,000—5,00057
5,000—10,00038
10,000—20,00043
20,000—30,00036
30,000—40,00013
40,000—50,00010
50,000—100,00048
100,000—150,00016
150,000—200,00015
200,000—250,00010
250,000—500,00022
500,000—750,0009
750,000—1,000,0007
1,000,000—2,000,00012
Over 2,000,00019
360