THE A LI M EXT ART TRACT, ETC. 



glandular cells of the fundus of the stomach (Plate II, Fig*. 187). 

 The cells are conical or cylindrical, the protoplasmic contents 





The abdominal viscera of Rana esculenta (female). 



/) Small intestine. 



tin Duodenum. 



EE Ovaries. 



// Heart. 



HB Urinary bladder. 



L Left lobe of liver. 



H Right lobe of liver. 



Z,2 Middle lobe of liver. 



lit Left lung. 



/>/! Right lung. 



M Stomach. 



granular, the granules being- larger than those of the corresponding 

 cells in the stomach (Langley). Mucous cells are found among 

 the true secretory cells. The cells of the ducts are sometimes, 

 but rarely, ciliated (Langley).] 



