22 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 
The appearance of new typhoid antagonistic substances 
in the blood after inoculation has been confirmed by in- 
dependent observers in England, America, and elsewhere. 
The most careful comparative tests made in the Indian 
Army during 1909 showed that of 10,378 moculations 5°39 
per 1,000 contracted the disease, while 8-9 per cent. of these 
died ; whereas of 8,936 uninoculated 30-4 per 1,000 contracted 
the disease, and of these 16-9 per cent. died. These figures 
have been analysed by an expert in statistics, who found that, 
even “arranging them in their worst possible way,” they had 
still a large proportion in favour of inoculation.* 
Among 30,325 inoculated French troops not a single case 
of typhoid occurred, although among the uninoculated the 
~ case rate was 2°22 per 1,000 for home troops, and 6:34 per 1,000 
for the colonial troops.* 
I show you the latest available figures on the results of 
anti-typhoid inoculation for the British Expeditionary Forcey 
compared with the number of cases of typhoid in some previous 
wats. 
Cases Case 
of Deaths. | Mortality. - 
Typhoid. Per cent. 
Inoculated, 90 per cent. of Force ............... 299* 20 6°7 
Not inoculated, 10 per cent. of Force ......... 48] 100 20°79 
* Of these, 142 received only one inoculation. 
* References given in “The Principles and Practice of Antityphoid 
Inoculation,’ by E. Glynn, Liverpool Medico-Chirurgical Journal, July,1915. | 
+ British Medical Journ,, May 8, 1915, p. 819. 
