GLANDS. 



109 



Che margin of the lower jaw, and below the ear, have each 

 a long tube which opens into the mouth through the cheek, 

 opposite the upper second molar tooth. (See Pig. 61.) 



Fig. 62 represents the parotid of the dog, which secretes a 

 very liquid saliva, whereas the small gland represented at B, 

 yields a secretion possessed of considerable viscosity. It is 

 an accessory gland which has been specially noticed by 

 Bernard in the course of his investigations on the salivary 

 fluid. 



Tig. 62. 



The sabrnaxiHary glands, situated within the lower part 

 of each parotid, and extending forwards, open into the mouth 

 behind the barbs. The sublingual glands open by numerous 

 small ducts on either side of the base of the tongue. See 

 Fig. 63, which represents at C C the coiled ducts, and in A 

 the duct of the submaxillary. 



Fig. 63. 



