290 
Cure of Surra 
Small animals inoculated with blood from the Surra treated 
cases under observation. 
Dog (1). Inoculated intraperitoneally with 20 c.c. citrated blood from Pony C 6. 
Blood examined daily for six weeks. Result negative. 
Dog (2). Inoculated intraperitoneally with 25 c.c. defibrinated blood from Pony C 16. 
Blood examined daily for six weeks. Result negative. 
Dog (3). Inoculated intraperitoneally with 10 c.c. fresh blood from Pony C 12. Blood 
examined daily for six weeks. Result negative. 
Dog (4). Inoculated intraperitoneally with 30 c.c. citrated blood from Horse C 17. 
Blood examined daily for six weeks. Result negative. 
Dog (5). Inoculated subcutaneously with 5 c.c. fresh blood from Pony C 29. Blood 
examined daily for six weeks. Result negative. 
Dog (6). Inoculated subcutaneously with 10 c.c. citrated blood from Pony C 14. 
Blood examined daily for six weeks. Result negative. 
Dog (7). Inoculated subcutaneously with 20 c.c. citrated blood from Pony C 24. 
Blood examined daily for six weeks. Result negative. 
Twelve rabbits and the same number of guinea-pigs were inoculated subcutaneously 
with fresh blood varying in amounts from 1 c.c. to 5 c.c. from ten of the treated cases. 
Blood was examined daily for six weeks. Results negative. 
Further experiments in the treatment of Surra. 
With a view to further confirm the results already obtained in the 
treatment of Surra by means of arsenic alone, and arsenic in combination 
with atoxyl; and to test the treatment on mules, a number of ponies 
and mules were inoculated with Surra in July 1909. When the disease 
was well established, treatment was carried out by methods of dosage 
similar to those adopted in the previous experiments. 
Nine mules and six ponies were subjected to treatment by the 2nd 
or combined method (a dose of arsenious acid in solution—Loeffler 
and Ruehs—followed on consecutive days by a dose of atoxyl 
subcutaneously and a dose of arsenious acid in bolus). From this 
number seven mules and four ponies recovered. 
Three ponies and two mules were treated with arsenic alone. One 
mule and two ponies recovered. It was intended to subject a larger 
number of animals to this method of treatment, but at the time no more 
animals were available for the experiment. 
Twelve ponies were treated with atoxyl and arsenious sulphide 
chemically pure ; one pony recovered. 
