On the Histogenesis of Gastric Glands. 481 
Fig. 1. Earliest or preglandular stage. Epithelium and underlying mesoblast 
6 cm. embryo. Three color stain. 
Fig. 2. Young parietal cells, showing intercellular ductules. 6 cm. Fundus. 
Three color. 
Fig. 3. Intra-epithelial gland stage. 6 ecm. fundus. Three color. 
Fies. 4 and 5. Young glands cut obliquely. 6 ecm. fundus. Three color. 5a 
and 5b represent adjacent sections; similarly 6a and 6b. These illustrate the true 
nature of the interbasal groups of Toldt and Ross. 
Fig. 6. Fundus gland. 6 cm. parietal cells were present in other sections of 
this same tubule. Three color. 
