. Diseases of domesticated birds. Poultry; Poultry; Birds. 200 DISEASES OF DOMESTICATED BIEDS of fowls in Montana, a view that Wilcox was not able to confirm. Among the later observers Walker has reported upon two autopsies of fowls in Grahamstown, Cape Province, in which lesions occurring in the lungs, were in his opinion, the cause of death. The owner reported that the comb turned purple, appetite was lost and the birds seemed fretful and weak in the legs. Birds were noticed to be sick for a week, when sudden collapse occurred. Observations by Walker follow. Morbid anatomy. Cytodites are fre
. Diseases of domesticated birds. Poultry; Poultry; Birds. 200 DISEASES OF DOMESTICATED BIEDS of fowls in Montana, a view that Wilcox was not able to confirm. Among the later observers Walker has reported upon two autopsies of fowls in Grahamstown, Cape Province, in which lesions occurring in the lungs, were in his opinion, the cause of death. The owner reported that the comb turned purple, appetite was lost and the birds seemed fretful and weak in the legs. Birds were noticed to be sick for a week, when sudden collapse occurred. Observations by Walker follow. Morbid anatomy. Cytodites are frequently found in the thorax and peritoneal cavity, fairly frequently on the mesentery and in the trachea. The lungs are mottled in appearance by some purple patches .2 to .3 cm. in diameter. On section, hyperemia is observed and serous fluid exudes from the cut surfaces. Small miliary tubercles of a gelatinous consistency are scattered through the af- fected portion of the lung, and parasites are visible in the midst of each of these. The larger bronchi and some of the bronchioles con- tain an exudate in which the parasites are imbedded. Other organs and blood appear normal. The conditions observed warrant the pathological anatomical diagnosis of hyperemia and edema of the lungs, and bronchial pneumonia. Microscopic examination of sections of stained tissue, under 300 magnification shows that the lung tissue surrounding the invaded air passages is infiltrated with leucocytes and red blood corpuscles. The blood vessels are congested. Some of the parasites have wandered from the air conduits into the surrounding parenchyma breaking down the regular network conformation of the latter. In some of the invaded air passages, the parasites have lodged themselves in the inner lining and have broken it down. In places cytodites are to be seen in the inter- lobular fibrous^ tissue. The larger bronchi contain an exudate. Tig. 33. Dithyridium variabile, from a fowl. Enlarged 10 to 12 CESTOD
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