ILLUSTRATIONS. 



Plate I. 



Fig. 1. Appendix and diverticulum after incision and partial removal of 

 contents. Portion of caecum also shown. (Photograph by 

 Cortes.) 

 2. Opened appendix and diverticulum. (Photograph by Cortes.) 



Plate II. 



Semidiagrammatic drawing of a section of appendix stained by Van 

 Gieson's method. 



1. Oblique section of practically oc- 6. Submucous fibrous tissue. 



eluded lumen at origin. ■ 7. Muscularis. 



2. Wall of caecum. 8. Remnants of mucous membrane. 



3. Peritoneum. 9. Point immediately adjacent to 



4. Diverticulum. | opening of diverticulum. 



5. Sub.serous fibrous tissue. j 



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