8 4 
Plate V. 
Fig. i. Cross-sections of wall of colon and caecum. Infiltration 
and honeycombed condition produced by submucosal, sub- 
peritoneal or intra-muscular cysts. Note the size of some 
of the cyst cavities, and the number of cysts in a small 
piece of bowel wall. The hyperplasia of the fibrous tissue 
is well seen and resembles the rings of a tree-trunk. 
Fig. 2. Wall of caecum. Thickening of wall by fibrous tissue. 
This cyst was greatly inflamed. 
Fig. 3. Ileum. Two small nodular subpcritoneal cysts. They do 
not communicate with one another. 
Fig. 4. Small omental gland , showing oesophagostome partially 
withdrawn. It had penetrated the gland and become 
encysted. x 12. 
Fig. 5. Ileum. Two small, flat, button-shaped subperitoneal cysts 
The cysts are quite separate. 
Fig. 6. Ileum. Note subperitoneal cyst on side of mesenteric 
attachment. It is attached to the side wall and, with two 
small submucosal cysts, has produced a puckering of the 
wall of the intestine. Several of these cysts produced a 
sacculated condition of the tube. 
Fig. 7. CEsophagostome lying on external surface of colon. The 
gastro epiploica, by which it was covered, is turned back. 
Note three small yellowish points near the worm; these 
are parts of worms in other cysts. The membranous 
coverings of the cysts were very thin, and were torn in 
drawing back the pad of fat. The small dark round spot 
“ m ade by the worm escaping from its cyst. 
g- 8. Colon. CFsophagostome withdrawn from its cyst cavity, 
x 20. 
S 9 Colon Two cysts magnified to show their plastic form, 
x 16. F 
F>g. 10. CEsophagostome. It had ruptured the walls of its sub- 
eri on e a C y st anc j had penetrated the mesenteric attach¬ 
ment of the ileum. * I2 . 
