138 DISEASES OF THE SALIVARY GLANDS, TONSILS AND PHARYNX. 



the corresponding submaxillarv gland is doughy and painful on pres- 

 sure. The symptoms rarely become more threatening than this. 



The diagnosis presents no difficulty. 



The prognosis is favourable. 



Treatment consists primarily in removing the obstruction from the 

 duct. Steady pressure from behind, forwards along the course of the 

 duct, may sometimes cause the foreign body to be ejected into the mouth, 

 along with a jet of offensive saliva. The distended and inflamed duct 

 soon becomes emptied, and all the symptoms rapidly diminish. In other 

 cases, when the obstructing body is firmly fixed in position, it is necessary 

 to open the duct within the mouth by a stroke of the bistoury. 



TONSILITIS IN PIGS. 



"Acute and cdironic forms are seen. The former has the general 

 causes and symptoms of pharyngitis — fever, dulness, a disposition to lie 

 with head extended and buried in litter, drooping ears, watery eyes, 

 indifferent appetite, painful deglutition, and sometimes vomiting. Mouth 

 red and hot, breath fa'tid, tonsils swollen, their alveoli filled with muco- 

 purulent matter or with foetid cheese-like masses. Cough at first dry 

 and hard, later loose and gurgling. 



In chronic form there is general swelling of the tonsils with 

 distension of follicles ])y above-mentioned putty-like masses, which are 

 often calcareous. These are due to the proliferation of microbes, which 

 find in these alveoli a most favourable field for their propagation. The 

 affection usually ends in recovery, but may go on to grave local ulceration 

 and general infection. 



Treatment. Astringent antiseptics to buccal mucous membrane. 

 Electuaries of honey or treacle and borax, sal ammoniac, chlorate or 

 permanganate of potash and externally stimulating embrocations to the 

 skin of the throat. In some cases solutions of iron chloride or tinc- 

 ture of iodine may be used with advantage and as a wash for the mouth 

 and fauces. Attend to general health. If constipated give Glauber's 

 salt or jalap, . . . and elimination through the kidneys must be 

 sought through the use of nitrate of potash or other diuretic." (Law's 

 " Veterinary Medicine," Vol. II. p. 46.) 



PHARYNGITIS. 



Inflammation of the mucous membrane of the pharynx is less frequent 

 in the ox than in the liorse, a fact probably due to its less sensitive 

 character in the ox and to differences in the methods of working oxen. 



Causation. The causes are numerous and varied ; and although 

 local microbic infection undoubtedly plays the most effective part in the 

 development of the disease, it is none the less certain that external 



