ioo MALARIA 



treatment of his own ca^e. It is therefore plain that 

 the best index of the efficiency of the methods used in 

 any malaria-control campaign will be the relative num- 

 ber of cases of malaria among the school children 

 during the period of control, and the number of cases 

 during the same period in the previous year when 

 there was no attempt at control. The appended report 

 on the number of absences due to malaria among the 

 school children at Penryn during 1909 and 1910, 

 kindly furnished by Mr. Huffaker, Principal of the 

 School and Treasurer of the Committee, shows con- 

 clusively that much good has been accomplished. 

 Unfortunately, only four months of each year are avail- 

 able for accurate figures for comparison, based on 

 school attendance. During the spring and summer 

 months of 1910 the decrease in absence from school 

 due to malaria is apparently greater than that shown 

 by the figures given, but the school records were not 

 kept in such a manner that the actual figures are 

 available. The months of September and October 

 were the least efficient of any during the control, as it 

 was not possible to have a field agent constantly on the 

 ground during these months. Under the circumstances, 

 I consider that the results have been far greater than 

 could have been expected, for while many residents 

 have actively aided the campaign, a great many have 

 been indifferent, and a few, through ignorance, have 

 been hostile. The majority have not taken sufficient 

 personal care to prevent being bitten by mosquitoes 



