th,s conuectio.. that practitioners l.avc now and again tried t„ reto 
tlieir patients by administering drugs witli the view of killing tlic add 
rvonns^ Considering what has just been said, and considenne ibr 
other fact that the great majority of liilhar/.ia patients do not nw 
or relief before the evil is more or less far advanced, it will at oner 
be understood that m nine cases out of ten every attempt at thewomn 
ill be too late. Pbat the eggs voided still harbour a live a* 
active miracdmm is no proof that they must be derived from a con.. 
by no C -'-y y-- Thf fact . 
S Instan” ’r r *-ed up ,n its grain are wclf 
ficance. ForTt 1 Zr^T' It''*’"'*' biological signi 
immature parasite is able i' r° '.'"‘''■'■“‘“nd that the longer an 
the probTbilit n * ■ i ^ chance, the greater become. 
i- «- 
JhTegTs wtoarenot**’,*"*' ‘*'”‘ -^ttP^bthtroT the“mrck'» 
for a vL i‘ Zr Z" 'be body, to remain alive 
We live so "r " of view 
call the normal course'^ wliat I should like to 
localitie.s where h ic i.e., tJjat wlhdi takes place m 
new host witliin a niiracidia to find i 
probability that the femal u- ^ these conditions there is ever)' 
produce few abnormal ova^ H.o 
spined ova are dcDosif/vt * ? remains almost free, but terminal- 
case may be. T^e is bladder or rectum, as the 
iipparition of terminal-spine'')”'**^^ f^jlharziosis ’ characterised by the 
also appear in the faceo^ i “t'ine; tljc same eggs may 
that they seem to be alto^cth o»cs will be so scarce 
js likely to happen unrlt-r ^ " '** consider what 
favourable to the worms. which arc no longer so 
day, but only at intervals 2 m tJie water day by 
Jn the water long, but for «« ^ tttonths; he does not remam 
minutes or an hour only; he avoids 
