Morphology. 



FlG. 1 8. Appendix vermiformis in Orang and in Man. Drawn from 

 dried inflated specimens in the Cambridge Museum by Mr. J. J. Lis- 

 ter. //, ilium; Co, colon; C, ccecum; W, a window cut in the wall 

 of the ccecum ; x x x, the appendix. 



MAN 



MAM 

 FfETAL 



FlG. 19. The same, showing variation in the Orang. Drawn from 

 a specimen in the Museum of the Royal College of Surgeons. 



