Diseases of the Respiratory Orguns. 83 



to be due to the locality rather than contagion. Close, 

 filthy pens, and want of care have appeared injurious in 

 some cases. 



Symptoms. Sudden iEness, with sore-throat and ex- 

 treme weakness and stiffness of back and loins. The pig 

 moves slowly and crouchingly with raised head, open dry 

 mouth, hoarse nasal grunt, livid tongue, and red swollen 

 throat with grayish-white patches of false membranes. 

 The eyes are dull and sunken and the appetite gone. In 

 a few hours all the structures of throat and nose are in- 

 volved, there is much swelling and threatened suffocation 

 and shreds of false memhrwie are coughed up. The pa- 

 tient remains down, sits on his haunches, or leans on the 

 fence and usually perishes in a fit of coughing. 



Treatment. Must be early to succeed, hence, examine 

 the throat for false membranes in all cases of sore-throat 

 in pigs, holding the animal with a noose around the upper 

 jaw. If white patches are seen, apply at once and freely 

 the nitrate of silver lotion advised for croup, and repeat 

 as often as may seem necessary to keep the diseased 

 growths in check. The bowels may be freely opened by 

 a purgative (jalap) and twenty drops of tincture of the mu- 

 riate of iron, and ten grains nitre given thrice a day in a 

 table-spoonful of cold water. Great attention must be 

 given to the comfort and to secure soft, easily-digestiblo 

 food for some time. 



CHBONIO KOAKING IN HOESES. 



This is a wheezing, whistling or hoarse rasping sound 

 made in the upper part of the windpipe (larynx) in breath- 

 ing and especially when excited. It is usually due to 

 paralysis and wasting of the muscles on the left side ol 

 the larynx and which open the channel for the au-, and in 

 such cases the noise is only made in drawing air in.^ But 

 any obstruction in the large air tubes will give rise to 

 roaring, heard most commonly in both inspiration and 

 3xpiration. Thus palsy of the nostrils, fi-acture and de- 



