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

City of London 1910

[Report of the Medical Officer of Health for London, City of ]

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Table: In all 42 samples were submitted to Dr. Klein for bacteriological examination, and his report thereon is as follows:—

In all 42 samples were submitted to Dr. Klein for bacteriological examination, and his report thereon is as follows:—

Sample No.Dirt.Date of Injection of Guinea-pigs. 1910.Date of Death.Result.
1Appreciable amountJune 2ndKilled July 15thNegative local and visceral.
2Small amountJune 2ndKilled June 23rdPurulent inflammation, no tubercle bacilli.
3Appreciable amountJune 2ndKilled July 15thNegative local and visceral.
4Small amountJune 2ndKilled July 15thNegative local and visceral.
5NegligeableJune 2ndKilled July 15thNegative local and visceral.
6AppreciableJune 2ndKilled June 23rdPurulent inflammation, no tubercle bacilli.
7NegligeableJune 4thKilled July 15thNegative local and visceral.
8SmallJune 4thKilled July 15thNegative local and visceral.
9AppreciableJune 4thKilled July 12thPseudo tubercle.
10SmallJune 4thKilled July 15thNegative local and visceral.
11AppreciableJune 4thKilled July 15thNegative local and visceral.
12AppreciableJune 4thKilled July 15thNegative local and visceral.
13SmallJune 7thKilled July 16thNegative local and visceral.
14Negligeable amountJune 7thDied June 10thSepticæmia.
15Negligeable amountJune 7thKilled July 16thNegative local and visceral.
16Negligeable amountJune 7thKilled July 16thNegative local and visceral.
17Appreciable amountJune 7thKilled July 16thNegative local and visceral.
18Small amountJune 7thKilled July 16thNegative local and visceral.

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From these tables it follows, leaving out No. 14 Bis:—
A. Dirt.—Appreciable amount in 12 samples 25 per cent.
Small amount in 19 samples 39.3 „ „
Negligeable amount in 17 samples 35.7 „ „
100 per cent.
B. Pathogenicity.—In 13 samples 27 per cent.
Of these: 3 samples tubercle 6.25 per cent.
C. No pathogenic effect whatever in 35 samples 73 „ ,,