6 
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CONTENTS. 
Chapter II. The malaria mosquitoes—Continued. 
Habits. 48 
Of the larvae. 48 
Of adults. 48 
Feeding. 48 
Time of day of biting. 49 
Flying distance. 50 
Breeding places. 51 
Color in relation to anophelines. 52 
Longevity and hibernation... 52 
Number of generations. 53 
Resting position of adults. 53 
Practical points in the differentiation of the anophelinse. 54 
Methods of collecting and dissecting mosquitoes. 55 
Dissection of the salivary glands. 56 
Dissection of the “stomach”. 57 
Chapter III. Prophylactic methods based upon the destruction of malaria 
mosquitoes. 58 
General remarks. 58 
Drainage. 59 
The blind drain. 59 
The cement-lined open drain. 60 
Subsoil drainage with tiles. 60 
Filling. 60 
Removal of shelter. 60 
Larvicides. 61 
Kerosene (fuel oil). 61 
Canal Zone larvicide. 63 
Other larvicides. 64 
Destruction of larvae by fish. 64 
Abolition of breeding places about barracks and quarters. 65 
Destruction of the adult mosquito. 67 
Sulphur dioxide. 67 
Smudges. 68 
Pyrethrum powder. 68 
Other fumigants. 68 
Mosquito catching as a prophylactic method. 68 
Chapter IV. Prophylactic methods based upon the protection of man from the 
bites of mosquitoes. 72 
General remarks.:. 72 
Screening. 72 
Selection of screening material. 73 
Size of the mesh. . 73 
Method of screening. 75 
Mosquito nets. 75 
Head nets and gloves. 76 
Use of odorous substances on the skin. 76 
Results of screening. 77 
Screening of malarial patients. 78 
Chapter V. Prophylactic methods based upon the destruction of malaria 
plasmodia (quinine prophylaxis). 80 
General remarks. 80 
Action of quinine upon the plasmodia. 82 
Form of quinine to be used in prophylaxis. 84 
