98 MORE MINOR HORRORS 



larva and pupa, and then there is no issuing 

 adult — hence the use of paraffin on the 

 pools or breeding-places. It, or any other 

 oily fluid, spreads as a thin layer over the 

 surface of the pools and puddles and clogs 

 the respiratory-pores and the larvae or pupae 

 die of suffocation. 



In Ismailia the disease has been reduced 

 to an amazing extent, and remarkable results 

 have followed the use of these preventive 

 measures at Port Swettenham in the Federated 

 Malay States. Within two months of the 

 opening of the port in 1902, 41 out of 49 

 of the Government quarters were infected, 

 and 118 out of 196 Government servants 

 were ill. Now, after filling up all pools and 

 cleaning the jungle, no single officer has 

 suffered from malaria since July 1904, and 

 the number of cases amongst the children 

 fell from 34-8 to 0*77 per cent. The only 

 melancholy feature about this wonderful allevi- 

 ation of suffering, due to the untiring efforts 

 of the district surgeon. Dr. Malcolm Watson, 

 is that his fees for attending malarial cases 

 dropped to zero. 



Thus, even ten years ago, a considerable 

 degree of success had attended the efforts 

 of the sanitary authorities — largely at the 

 instigation of Sir Ronald Ross — all over the 

 world, to diminish the mosquito-plague. It 



