ADVERTISE RESULTS 111 



assist them sometime if they are " diplomatic." 

 Care must always be exercised in accepting very 

 favourable reports from such persons. 



An attempt should be made at the end of each 

 year to classify the fevers affecting the town. The 

 doctors' returns should help in this. In most tropical 

 towns there are many different kinds of fever which 

 are most confusing. There are typhoid, Malta fever, 

 malaria, simple continued fever, dengue, twelve-day 

 fever, seven-day fever, and the phlebotomus, or three- 

 day fever, recently differentiated. Then there is the 

 possibility of latent yellow fever, the fever accom- 

 panying ankylostomiasis, endemic cirrhosis of the 

 liver, sleeping sickness, kala azar, and a host of other 

 affections as well as the zymotic diseases. It is not 

 always easy to differentiate between these, and some- 

 times it is impossible. 



It will require a great deal of painstaking research 

 before all these diseases can be diagnosed from each 

 other with certitude. But in the meantime efforts 

 may be made to collect information from all sources 

 about them. One good source is a carefully con- 

 ducted mosquito campaign. The figures obtained 

 from a frequent fever census taken before, during, 

 and after the mosquito reduction will certainly be of 

 the utmost use when attention is drawn to the 

 anomalous fevers of warm climates, and researches 

 upon them begun seriously. If fever statistics are 

 drawn up carelessly, however, they will be useless for 

 such a purpose. 



The results should be published broadcast. The 



