Plate II. 



Mucous alveola* 



.* ___ Crescents of Gianuzzi 



Supporting connective tissue 



\. Section of submaxillary gland showing both mucous and serous alveoli, x 250. 

 (Stained with haematoxylin.) 



/ 



Before secretion (retting;- After secretion (active) 



2. Section of serous glancL x 300 (Stained with borax carmine.) 



cells 



An acinus 



Connective tissue - - 



Intermediate duct ^V' 

 leading f I'D >n acini of gland 

 to infralcl'iitar duet 



Slood-vetsel 



intralobular/ 



3. Section of mucous gland (after secretion), x 300. (Stained with picrocarmine.) 



