DISEASES OF THE ORGANS OF LOCOMOTION 189 



salicylate of sodium three times a day. Give one teaspoonful 

 of castor oil in severe cases in adult fowls. 



Properly ventilate the quarters, keep them clean, free from 

 dampness, and supply the birds with good wholesome feed 

 and water. If the cause is a lack of lime salts (rachitis), 

 milk and lime water should be given freely. Feed ground 

 bone and meat meal to baby chicks and place the chicks on 

 the ground, at least, through the warmer part of the day. 

 Even temperature and proper heat must be supplied baby 

 chicks at all times. We have found by laboratory studies 

 fhat fifteen minutes chilling may cause congestion of the 

 lungs and kidneys and result fatally. 



Remove the affected birds, in case of disease among young 

 chicks, and reduce the amount of fat forming feeds. Give 

 the proper protein ration. A narrow ration is needed. (N. 

 R. 1:3) Feed oatmeal and oats, cracked and whole wheat, 

 plenty of green feed, sour milk and one teaspoonful fluid nux 

 v^omica to each pint of water. 



INFECTIOUS ARTICULAR INFLAMMATION IN YOUNG 



GEESE AND DUCKS 



Freeze and Lucet report infectious arthritis in young ducks 

 and geese five to eight weeks old. The organism isolated in 

 all their investigations was the Staphylococcus pyogenes au- 

 reus. They were able to reproduce the disease with inocula- 

 tions of pure cultures of the organism. 



Symptoms. — The acute type causes lameness. If the affected 

 joint is in the w^ing, the wing will hang pendulous. There is >i 

 loss of appetite, diarrhea and at times slight conjunctivitis. 

 The course is rapid, resulting fatally in three or four days 

 after the first manifestation of the disease. 



In the chronic type, arthritis is the most prominent symp- 

 tom. Diarrhea may be present in the onset of the disease 

 and the bird may recover in two to three weeks. The bird is 

 stunted and does not fatten satisfactorily. 



The structural changes consist of a serous or sero-fibrinous 

 inflammation of the joints. There is a hemorrhagic inflam- 

 mation of the bone marrow. In chronic cases purulent osteo- 

 myelitis may occur. Intestinal catarrh is noted. 



Treatment. — This consists of local applications; fomenta- 

 tion of the affected joint with hot water thirty minutes twice 

 daily. 



PARALYSIS OF THE WINGS OF PIGEONS 



The shoulder and elbow of the wing of carrier pigeons are 

 sometimes affected by arthritis, which has been described as 



