WOKMS. 
119 
Fig. 10. 
Fig. 11. 
Fig. 12. 
Fig. 13. 
Stages in the life-history of the Fluke. 
Fig. 10. Egg of Fluke, showing the operculum and the contained yolk-spheres. 
Magnified 340 diams. 
Fig. 11. An embryo forcing its way by its boring-papilla (p) into the wall of 
the lung of a Snail (e.p). Magnified about 340 diams. 
Fig 12. A young Bedia (natural size, \ millimetre or ^ inch) : pi, pharynx ; 
g, contained germs ; p, characteristic posterior processes of the Bedia. 
Fig. 13. Free-swimming Cercaria, before the commencement of the formation of 
the cyst. Magnified 100 diams. 
