TABLE OF CONTENTS. 
Page. 
Introductory Remarks. 9 
Illustrations of successful malaria prophylaxis. 10 
Results in the Army.;. 10 
Chapter I. The malaria plasmodia. 17 
Methods of demonstrating the plasmodia. 17 
Apparatus. 17 
Living specimens. 17 
Stained specimens. 18 
Method of staining. 18 
Staining reactions. 20 
Ross thick film method. 20 
Morphology and life cycle. 21 
Classification. 21 
Plasmodium vivax. 22 
Unstained specimens. 22 
Stained specimens. 23 
Plasmodium malariae. 24 
Unstained specimens. 24 
Stained specimens. 25 
Plasmodium falciparum. 26 
Unstained specimens. 26 
Stained specimens. 27 
Plasmodium falciparum quotidianum. 27 
Living specimens. 27 
Stained specimens. 28 
Development of plasmodia in the mosquito. 28 
Morphology of the sexual forms of the plasmodia. 30 
Gametes of Plasmodium vivax. 31 
Gametes of Plasmodium malariae. 34 
Gametes of aestivo-autumnal plasmodia. 34 
Differential diagnosis of the malarial plasmodia. 36 
Objects which may be mistaken for the plasmodia. 37 
In fresh blood. 38 
In stained preparations. 39 
Chapter II. The malaria mosquitoes. 41 
Geographical distribution. 41 
Number of infected mosquitoes. 42 
Species of mosquito in relation to malaria. 43 
Classification. 42 
External anatomy. 44 
Internal anatomy. 45 
Life cycle of anophelines. 46 
The ova. 46 
The larvae. 47 
The pupae. 48 
The adult mosquito. 48 
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