Serial No.

Animal

Date of

infective

inoculation

Dose of " Bayer
205 " in grms.
per 1,000 lb.
body-weight

Result

Remarks

7

Donkey No. 13

20th Oct. 1925

5.0 Oct. 21st

Cured

No relapse. Infected

intrathecally.
(Later—22nd March 1926

—died of debility.)

8

Donkey No. 41

8th Oct. 1925

5.0 Oct. 13th

Cured

On 13th October 1925
tryps. noticed in cir-
culating blood at the
rate of 1 per field and in
centrifuged spinal fluid
sediment at the rate
of 40 per field. The
animal had been in-
fected intrathecally.

9

Pony No. 74

27th Nov. 1925

2.5 Dec. 5th

2.5 Jan. 4th
5.0 Mar. 30th

Died Mar. 31st,

1926.

Tryps. noticed in cir-

culating blood since
16th March 1926. The
animal had been
infected intrathecally.

10

Pony No. 80

27th Nov. 1925

5.0 Dec. 5th
5.0 Jan. 4th

Cured

Never relapsed. The
animal had been
infected intrathecally.

11

Pony No. 79

27th Nov. 1925

5.0 Dec. 5th
5.0 Jan. 4th

Cured

Never relapsed. The
animal had been
infected intrathecally.

12

Horse No, 59

30th July 1925

1.0 Aug. 22nd

1.0 Sept. 2nd
0.2 Sept. 20th

Died Sept. 20th

1925.

Tryps. noticed in circulat-

ing blood during the
entire course of treat-
ment, but cerebro-
spinal fluid negative
for parasites.

13

Horse No. 46

5th Oct. 1925

5.0 Nov. 13th

Cured

" Showed moderate
clinical symptoms of
surra " before drug in-
jection on 13th Nov.
but no tryps. were visi-
ble in spinal fluid,
although those were pre-
sent in the circulating
blood on this date.