98 
THOMPSON YATES LABORATORIES REPORT 
Class I — Food 
Milk. — Samples of milk were sent to the bacteriologist mainly with a view to determine 
whether they were free from the tubercle bacillus. 
The precautions taken in carrying on the investigation have already been detailed in 
previous reports, and it is not necessary to repeat them. It may be remarked that Professor 
BoYCE, like the other bacteriologists who have carried on researches into the presence or absence 
of the tubercle bacillus, alludes incidentally to the important fact that in a certain proportion of 
cases the inoculated animal dies long before the time necessary for a tubercular lesion to develop. 
This result has been shown to be due to the presence in the milk of a virulent spore-bearing 
bacillus, possessing characters similar to those of the bacillus enteritidis sporogenes, and which is 
apparently associated with the choleraic disease so fatal to children during dry and hot weather. 
The total number of samples of milk examined was II2, 28 being samples taken from the 
railway stations on arrival from the country, and 84 from the town. Of the 84 town samples 
7 were proved to contain the tubercle bacillus, and of the 28 railway samples 5 were shown 
to contain the tubercle bacillus. These proportions of tubercular milk are in excess of the 
average. 
With regard to ice-creams, the samples examined were found to contain a large number of 
micro-organisms, a circumstance which affords confirmatory evidence of the necessity for the 
measures obtained in the Liverpool Corporation Act of 1898, for ensuring cleanliness in the 
manufacture of ice-cream. 
Milk 
Tubercle 
Sample 
Source. 
Date 
bacilli 
Remarks. 
Number. 
1898. 
present or 
absent. 
150 
Town 
Jan. 4th 
Absent 
15 + 
Town 
Jan. 14th 
Absent 
Town 
Jan. [4th 
Absent 
.56 
Town 
Jan, 14th 
Absent 
160 
Railway Station 
Jan. 26th 
Absent 
161 
Railway „ 
Jan. 26th 
Absent 
162 
Railway „ 
Jan. 26th 
Absent 
163 
Grafton Street Hospital Jan. 27th 
Inoculated animal died Feb. 
4th, from local abscess at 
seat of inoculation. 
185 
Town 
Feb. 17 th 
Absent 
186 
Town 
Feb. 17th 
Absent 
187 
Town 
Feb. 17th 
Absent 
192 
Railway Station 
Feb. 2 3 rd 
Absent 
Town 
Feb. 2t;th 
Absent 
194 
Town 
Feb. 25 th 
Absent 
197 
Town 
Mar. 3rd 
Animal died on March loth 
from natural malnutrition. 
198 
Town 
Mar. 3rd 
Absent 
199 
Town 
Mar. 3rd 
Present 
200 
Town 
Mar. 3rd 
Absent 
208 
Town 
Mar. 8 th 
Absent 
