84 COMPANION TO TROPICAL READERS 



(b) Notice the nature of the country around the 

 school, and decide on a position that you think would 

 be an unhealthy site for a house. Record the reasons for 

 your selection. 



(c) Make a drawing showing a desirable situation for a 

 house ; indicate the elevation, prevailing winds, character 

 of soil and subsoil, &c. 



(d) Make a rough drawing showing an undesirable 

 situation for a house; indicate elevation, nature of soil 

 and subsoil, neighbouring swamps, &c. 



INSECTS THAT CARRY DISEASE 



Investigations, made since the preparation of the 

 Tropical Readers have shown conclusively the important 

 part played by insects in conveying diseases from one 

 person to another, and attention is therefore here drawn 

 to the subject. The value of health is generally recog- 

 nized, and the benefit to the community generally will 

 be great if each teacher makes his school a medium for 

 spreading information as to how the dangers of infection 

 through the agency of insects may be lessened. Mos- 

 quitoes, flies, fleas, and bugs are amongst our worst 

 foes, and the illustration shows the diseases for which 

 they are responsible. 



MOSQUITOES 



Expt. 209. Connection between Breeding Places of 

 Mosquitoes and Malarial Fever. Make a list of dis- 

 tricts where people suffer commonly from malaria. In 

 each case state if there are swamps near by, and if mos- 

 quitoes are plentiful. 



Expt. 210. Search should always be made for likely 

 Breeding Places of Mosquitoes. Look for any likely 



