Fig. 



-LiFE-HlSTORT OF THE MALARIA PaRASITE. 



a, exotospore, or malarial pcerm, as introduced into the blood by tlie mosquito ; b, exoto- 

 spore after entry into blood corpuscle ; c, growth of exotospore into an amoebula ; 

 d, division of amcebula to form enhjemospores : e, liberated enhaemospores ; 

 f, growth of enhsemosiwre into a crescent at expense of corpuscle : g. male, and 

 h, female crescent ; «, male cell with projections, which lengthen, and are 

 eventually set free as spermatozoa ; /, fertilisation of ovum by spermatozoon ; 

 h, fertilised egg as the active motile vermicnle ; I, enlarged vermicule, after boring 

 through the stomach wall of the mosquito, forming the sphere ; m, segment of 

 sphere at maximum stage of development, containing countless needle-shaped 

 spores, which, when it bursts, escape as exotospores into the organs of the 

 mosquito's body and pass through the salivary glands into the proboscis, and so 





c 2 



