PLATE V. 



18. 



PYLORIC OPENING OF STOMACH. 



Photomicrograph bj Wm. Radam. 



19. SARCINA VENTRICULI. 



(FROM THE STOMACH.) 



X 2500. Photomicrograph by Wm. Radam. 



20. MICROCOCCUS TETRAGENUS. 



(IN STOMACH.) 



X 2500. Photomicrograph by Wm. Radam. 



