47 



wherevei' they grow. Sometimes tliev sprcjid rml iiv(>f 

 the lining- membrane of the air tubes and cause a 

 diffuse inlhircmation and thiclceniug that somewiiat 

 resembles Hit clumige that takes place in diphtheria. 

 In the lungs, the growths are oliarflcterized by the .ap- 

 pearance of little round nodules, where the tissue dies 

 and becomes yellowish and of the consistency of 

 cheese. In old cases, these spirfs sometimes become 

 loaded with lime sialts and then they are hard and even 

 stony. The principal symptom is difficult breathing. 

 The respiratory movements are rapid and accompanied 

 by a hoarse sound. The appetite is, diminished, the 

 spirits are depressed, the bird is disinclined to move, 

 its feathers become ruffled, it loses flesh rather rapidly 

 and towards the end develojjs a diari-lioea that hastens 

 it *^ its faliil tennir.ation. The entire cO'urse of the 

 disease is rather long and usually covers several weeks. 



T^'oatnx'nt in tiiese ciises is not to be recommended 

 bi'.atise Hie outlook for recovery is poor. However, if 

 a ay tiling is done the best results can be obtained by 

 causing the bird to inhale the vapoa' of iodine. This 

 plan of ti'ealment is carried out by mixing equal parts 

 of tincture of iodine and hot water. The steam as it 

 rises carries the iodine vapor and by holding the vessel 

 beneath the bird's head it is obliged to inhale this 

 medicine. Iodide of potash may be administered in- 

 ternally in doses of one to two grains twice daily. 



It is far better, however, to prevent the disease than 

 to allow it to develop and then attempt to cure it. 

 When it is remembered that moulds occur principally 

 in damp, dark places, it will be seen that good drain- 

 age, ventilation ai'd light will prevent their gi-owth 

 and thus ward off Ihe disease. Disinfection and white- 

 washing arc also of the highest valn(> in this direction. 



