288 
The  Natural  History  of  the  Liver-Fluke. 
Fig.  9. 
Fig.  10. 
with  the  contents  forming  into 
germs  of  the  third  generation. 
Magnified  230  times.’, (Original. 
—A.  P.  T.) 
Fig.  10.— A full-grown  redia  (second 
generation)  of  the  Liver-fluke.  It  con- 
tains a large  number  of  germs  of  the 
third  generation.  Two  of  these  are  so 
far  advanced  that  they  show  the  charac- 
ters of  the  tailed  larva  or  cercarla.  It 
contains  also  on  the  left  hand  a young 
redia.  cl  and  c2,  the  two  cercaria1 ; in, 
intestine  of  cercaria;  to,  tot,  germs  in 
Ja  very  early  stage ; r,  r,  the  processes 
which  serve  as  feet ; tn1,  the  intestine 
of  redia  •,  t>,  the  birth-opening  by  which 
the  cercarim  leave.  Magnified  120  times. 
(Original.— A.  P.  T.) 
— W 
