MAL DE CADERAS.
This is a disease caused by Trypanosoma Equinum described by Voges who studied the affection in the Argentine Republic as it exists in a region extending from Santa Fe, and Corrientes on the south to Bolivia on the north. It resembles surra in prevailing in tropical heat, during wet weather, in its intermittent character, in the presence of the mature trypanosomata in the blood at the beginning of a paroxysm and their disappearance toward the end of it, in the supervention of rapid and extreme emaciation, debility and anæmia, in the destruction of red blood globules and the passage of the coloring matter by the kidneys, in the presence of paresis and œdemas, in its expending its energy mainly on the soliped and in the constancy of the mortality. Death occurs in two to five months in horses, and six to twelve months in asses and mules. Swine and water hogs contract the disease casually and it is inoculable on white and gray rats, mice, rabbits, dogs, goats, sheep, chickens, turkeys, ducks and monkeys, (Nyctipithecus felinus), and exceptionally on Guinea pigs. The same measures of prevention would be indicated as in cases of surra and dourine.