Tlie Rot in Sheep. 105 
This body has been by some hclminthologists called tlie " r/erm 
stock." In some specimens of distoma in our collection a third 
branch is seen to proceed from the jelk sacs towards the "germ 
stock," joining the main horizontal duct before it reaches that body. 
Fig. 7. 
Generative Organs of the Distoma. Magnified. 
From the " germ stock " a short duct arises which leads 
directly upwards into the uterus, ee. Within this duct the ova 
are first to be detected — a fact which we think of some import- 
