140 TYPHOID FEVER 



1906, on which latter date flies reappeared. Although we 

 searched diligently for their breeding ground, it could not be 

 found, and as a result we daily expected an outbreak of enteric. 

 In this we were not disappointed, as we got ten cases, each from 

 a separate barrack room." 



Jones (1907, p. 22), who instituted the measures, pointed out 

 that since a raid on flies had been commenced in Nasirabad, in 

 1904, the enteric fever rate there had very much diminished, and 

 that the results obtained were partly due to a better system of 

 trenching the night soil, by which the breeding of flies was 

 prevented. 



Later Faichnie (1909, p. 580) gives an interesting account of 

 his experiences in this neighbourhood. 



" One of my first duties as sanitary olTficer of the division in 

 which Nasirabad is situated was to report on its water supply. 

 As a result of my inspection and analysis I was satisfied that 

 the water was above suspicion, and probably had been so for 

 many years. Meanwhile the improvement in the enteric rate, 

 which had commenced in 1904, has been maintained up to 

 August 1909. 



" At my first visit to Nasirabad, in January of this year, flies 

 were present both in the barracks and in the hospital, but only 

 a few were then found at the trenching ground ; at my second 

 visit, at the end of May, none at all were found at that place. 

 In my head-quarter station, Mhow, there was also a sudden 

 diminution in enteric in 1907, which has been maintained ever 

 since. This diminution coincides with the inspection of the 

 station by Surgeon-General Trevor, who found the trenching 

 grounds swarming with flies. Since then, owing to the skill and 

 watchfulness of the Cantonment Magistrate, Major Hunts, a 

 marked change in this respect has followed, and now for eighteen 

 months scarcely a fly has been bred there. 



" This drop in the enteric fever rate is very marked, but it 

 cannot be put down solely to anti-typhoid inoculation, for 

 although the majority of the people in the station have been 

 inoculated, many have not, and of those who have been many 

 were done in 1907, and are now showing only slight signs of 

 protection, judging by their agglutinins. There are also in the 



