i 9 + 
but as a matter of fact, there were only about fifty, showing a Ik 
o a ou 9/ per cent. This loss may be partly explained by an 
servation on the fate of gametes in vitro and in vivo , when it .as 
noticed that fully 50 per cent, of gametes were phagocyted by 
polymorphonuclear leucocytes. This last is truly surprising, becao* 
this type of leucocyte in the circulating blood of man rarely plays 
any part in malarial phagocytosis, save in pernicious infections, 
when it will then engulf parasites and pigment. Usually it is (be 
large mononuclear and endothelial cells which phagocyte malanai 
parasites and pigment. 
In Experiment 41, blood specimens from a patient taken on 
admission contained g 2 crescents per ,00 leucocytes. Fresh 
preparations examined fifteen to twenty minutes after being taken, 
contained many pigmented extra-cellular parasites, some svitb 
uiescen pigment, others with pigment dancing in a circle around 1 
one fillH Cen n e ' C ^ flagella in some Ms-two in 
cells I ” e flageI,um was seen attached to several red blood 
det-arh ri m ° Vln ^ W ‘ 1 ^ extreme violence, but without becoming’ 
Dolvm 6 h a ” Umber of the gametes became phagocyted by 
^”7 c?“‘T leUCOC >' tes > one ° f the latter had phagocyted two 
polvmomh' T specimens showed numerous gametes within the 
polymorphonuclear leucocytes; one free, detached flagellum was 
a TrJrZ t r meteSWere globular with hnear pigment and 
surrounding ^chromatin rin^ C ° ntained S ranular pig*®*' 
achromatic space on its interfor ^ ^ 
care of mosquitos after biting 
Patients,"or,' This “esired ^ fr<M 
zygotes they ire feH ° ascertam t}ie ra te of development of 
ants; otherwise valmible^ ^ infected mos< 3 uito s be protected from 
removed, with nothing butT^TandT ^ dUring ^ nigh ‘ * 
t wings and legs to mark the loss. 
