ANTIMALARIAL WORK IN PANAMA 81 



the same cause in 1907. Amongst the 550 European 

 residents, there were 4 deaths due to chmatic causes, 

 yielding a deatli rate of 21 per 1,000 from all causes, 

 or 7 per 1,000 from climatic causes. From the other 

 African colonies equally satisfactory reports are being 

 received, showing unmistakably that the teaching of 

 tropical hygiene is beginning to bear fruit, and that 

 there has been a net gain of life and money. Yet only 

 eighty-five years ago, according to Dr. Kennan's Report, 

 there were 1,912 deaths amongst the 5,823 troops 

 stationed on the Coast, or a death rate of 1 in 3. Similarly 

 of 89 officers employed by the Church Missionary Society, 

 54 died and 14 returned home broken in health ! 



CAMPAIGN ON TLIE ISTHMIAN CANAL ZONE 



PANAMA 



Panama, like Havana, has now become an object- 

 lesson in prophylaxis to the rest of the world. Until 

 recently the mosquito absolutely foiled the attempts 

 of man to construct the canal. The French tried it, 

 with a loss which has been estimated at 50,000 men. 

 Anopheles and Stegomyia were more than a match 

 for man. But thanks to researches in tropical medicine, 

 their breeding grounds were disclosed and their slaughter 

 commenced, and regular monthly reports tell us with 

 what marvellous success. Both Sir Frederick Treves 

 and Sir Harry Johnston have already made it the text 

 of very inspiring addresses. 



In 1904 the United States took over the administra- 

 tion of the Canal Zone and appointed a commission, and 



6 



