| A.—ONE PART OF THE MIXTURE. | ||
|---|---|---|
| Methylene blue | 1 | Grams. |
| Borax | 2.5 | „ |
| Distilled water | 100 | „ |
| B.—FOUR PARTS OF THE MIXTURE. | ||
| Eosin | .1 | Grams. |
| Water | 100 | „ |
The plasma of the trypanosoma appears blue, the flagellum red and the chromatin of a different shade of red. It may be permanently mounted in balsam.
Mortality. The disease is constantly fatal in horses, though the animal may survive for months.
SURRA IN CAMELS.
Haggar describes this as having remissions or intermissions as in the horse, the trypanosoma disappearing during the intervals to reappear with the hyperthermia. The temperature may rise to 106° F. and the animal wastes away to a veritable skeleton. A remarkable feature of the disease is the formation of immense abscesses containing a thick, cream-colored pus on the sides of the chest in the vicinity of the pad, and in the sheath and scrotum or udder near to the stifle pad. The mortality is nearly as great as in the horse or mule, yet the camel drivers say that a small percentage recover.
SURRA IN BOVINES.
The domestic ox, the sacred cow of India (Lingard) and the water buffalo (caribao) of the Philippines contract Surra. It is interesting to notice that in these animals the disease is relatively mild and recoveries are frequent.
In the Indian buffalo it causes dulness; advancing emaciation; slight temperature variations; muco-purulent inflammations of the conjunctiva, cornea, and pituita; and occasionally eruptions under the breast or belly.
Among lesions were atrophy, softening of lymph glands, enlarged liver and spleen (slight), petechiæ and blood extravasations on the pericardium, epicardium and other serosæ, and on the intestinal mucosa which sheds its epithelium in patches.
Stall enzoötics in cattle do not seem to affect horses casually. The disease is easily conveyed to rabbits, house rats and mice, dogs, cats and apes. Goats and ducks appeared to be immune (Penning).