diarrhoea persists in a severe form Opium in some 

 form must be given, Laudanum in the right propor- 

 tions can be put in the drinking water. After the 

 bird is convalescing, tlie tonic should be given in 

 the water for some time to prevent the symptoms 

 from recurring. 



CANKER IN EAR. 



Another form of Canker affecting, as it were, 

 the ear instead of the throat. The cankered matter 

 will be about the same in appearance as that of the 

 throat. This is not considered a fatal disease but 

 will, if let advance, be very detrimental to the bird's 

 hearing. 



Treatment: Remove as much cheesy matter as 

 possible without injuring the surrounding flesh, and 

 use as a wash a mild solution of Bichloride of Mer- 

 cury, or that of Peroxide of Hydrogen. 



SOUR CROP. 



A form of indigestion often produced by the 

 use of too much corn in connection with wheat. If 

 grains of the same nature such as wheat, buckwheat, 

 millet, canary, etc., are fed at one meal, this condi- 

 tion will seldom if ever arise. Most cases originate 

 in the injudicious use of corn, probably on account 

 of its cheapness. 



Symptoms: The bird will have a rather lazy 

 look, and appear rather uncomfortable. The breath 

 will be rather offensive and have a sour smell. Wben 

 felt, the crop will be mushy and is somewhat dis- 

 tended. When U'c bird has eaten very heartily the 

 crop may be greatly distended from the accumulation 

 of gases produced by the decomposition of the food. 



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