7 * 
Plate II. 
Fig. i. Caecum and appendix. External surface. The gut was 
held up to the light in order to show more clearly the 
extent of the black haemorrhagic patches. Note the black 
areas at the apex. These are masses of subperitoneal 
tumours infiltrating a longitudinal muscular band. Some 
necrotic and calcareous patches are seen coloured yellow. 
Appendix vermiformis. Probe passed through lumen 
into caecum. Notice tumour mass on wall of caecum; it 
is composed of a number of submucosal and subperitoneal 
cysts. 
Fig. 2 . Compare Piate III, fig. i. 
Interior of Caecum. Edges of bowel held apart, and 
tumour masses depicted by transmitted light, so as to show 
the thickening, and the cord-like appearance of the cysts. 
1 hese masses are composed of a number of submucous, 
haemorrhagic cysts near each other. Note the general 
tumour development at the upper and lower portions of 
the drawing; these correspond to the clusters of sub¬ 
mucosal and subperitoneal cysts about the longitudinal 
muscular bands. Probe passed through appendix. 
