EBFEREKCES TO PLATES. XIII 



PLATE VII. 



Fig. 1 . The Cysticercus tenuicollis. 



Fig. 1 . a. Head of the same magnified. 



Fig. 2. The Coenurus Cerebralis. 



Fig. 2. a. Heads of the Ccenurus magnified. 



Fig. 3. The pentastoma. Hitherto supposed to 

 exist only in the dog and wolf, but discovered recently 

 in the frontal sinus of the sheep by my friend Mr 

 Rhind of Edinburgh, by whom the drawing for this 

 figure was kindly furnished. 



PLATE VIIL 



Fig. 1, Hydatid in the brain of a sheep (from a 

 drawing by my friend Dr Kirk of Deal) ; a. the right 

 lobe of the cerebellum or lesser brain distended with 

 fluid, inclosed in a membraneous bag, as shown at 6., 

 where an incision has been made to expose it ; and at 

 c. where it is shining through the pia matery one of 

 the coverings of the brain. 



Fig. 2. Showing the extent to which hydatids some- 

 times distend the ventricles of the brain ; a. the dilated 

 ventricle of the left side ; h. b, convolutions passing 

 Irora back to front ; c. d. depth of the furrows. 



