relation to one another are shown in the figure 
(Fig. 14). 
Further, there is a certain amount of evidence 
to shew that a gamete ($ ) in the blood can undergo 
a kind of retrogressive development, and give rise by 
parthenogenesis to young parasites ( i.e ., schizonts). 
If this is so, it would explain the supposed function of 
old attributed to crescents (gametes) of producing 
relapses. 
There is no evidence at present that the parasite 
passes into the ovum, giving rise to hereditary trans¬ 
mission. 
