Fie. 18. Cardia. 19 cm. Three color. The cells represented in outline are 
surface mucous cells. 
Fig. 19. Fundus. 19 em. A complete tubule. Three color. 
Fie. 20. Fundus. 19 em. Bottom of a tubule, showing parietals and adelo- 
morph cells. Copper chrome hematoxylin. 
