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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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79
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, 1932:—

Table: Table XXVI.

Table XXVI.

ORDINARY MILK.Present.Absent.Over 200,000 per c.c.Under 200,000 per o.c.Present in 1/l00c.c.Absent from 1/l00c.c.Present.Absent.Present.Absent.Exceeding a trace.Not exceeding a trace.
Tubercle bacillus10288
Total No. of bacteria78220
bacillus Coli162136
Blood2296
Pus...298
Detritus...298
10288782201621362296...298...298

Table: The 298 samples of ordinary milk contained total bacteria per c.c. as follows:—

The 298 samples of ordinary milk contained total bacteria per c.c. as follows:—

0—1,0004
1,000—5,00021
5,000—10,00022
10,000—20,00041
20,000—30,00024
30,000—40,00024
40,000—50,00016
50,000—100,000 ...32
100,000—150,000 ...18
150,000—200,000 ...18
200,000—250,000 ...11
250,000—500,00026
500,000—750,000 ...9
750,000—1,000,000 ...7
1,000,000—2,000,000 ...7
Over 2,000,000 ...18
298