88 
Surra 
Pony no. C 3. 300 lbs., 4th paroxysm. 25th day of disease. This pony has been 
previously treated by another method which failed. 
1st day 1 gm. ars. ac. 
9th day 1 gm. ars. ac. 
3rd „ 1 „ 
11th „ 1 
5th ,, 1*2 gms. ars. ac. 
13th ,, 1 ,, 
7th „ 1 gm. 
15th „ 1 
No reappearance of trypanosomes. 
Kept under observation 
months. 
Horse no. C 1. 950 lbs., 3rd paroxysm. 
1st day 1 gm. ars. ac. 
3rd „ 1*5 gms. ars. ac. 
5 th ,, 1*5 ,, 
7th „ 2 
17th day of disease. 
9th day 2*5 gms. ars. ac. 
11th „ 2*5 
13th „ 3 ,, 
After this last dose of 3 gms. the horse was off his feed for three days and treatment 
was suspended for 10 days. 
24th day 2 gms. ars. ac. 26th day 2 gms. ars. ac. 
28th day 2 gms. ars. ac. 
No reappearance of trypanosomes. Kept under observation 6 
months. 
Horse no. C 2. 900 lbs., 3rd paroxysm. 
1st day 1 gm. ars. ac. 
3rd ,, 1*5 gms. ars. ac. 
5th ,, 1*5 ,, 
7th „ 2 
19th day of disease. 
9th day 2*5 gms. ars. ac. 
11th „ 2*5 
13th „ 3 
After the last dose of 3 gms. the horse was off feed for some days and treatment was 
suspended for 10 days. 
24th day 2 gms. ars. ac. 26th day 2 gms. ars. ac. 
28th day 2 gms. ars. ac. 
No reappearance of trypanosomes. Kept under observation 6 
months. 
Pony no. C 5. 250 lbs., 1st paroxysm. 6th day of disease. 
1st day 
1 gm. ars. ac. 
11th day 
1*5 gms. 
ars. ac. 
3rd ,, 
1 „ 
13th 
1*25 
>> 
5 th ,, 
1 „ 
15th 
»» 
1*25 
99 
7 th „ 
1 „ 
17th 
99 
1*25 
99 
9th „ 
1*25 gms. ars. ac. 
19th 
99 
1*5 
99 
No reappearance of trypanosomes. Kept under observation 8 
months. 
Pony no. C 7. 300 lbs., 1st paroxysm. 6th day of disease. 
1st day 1 gm. ars. ac. 
Pony was off feed for several days and no further treatment was given. 
No return of trypanosomes. Kept under observation 5J months. 
