88 THE INDIAN JOURNAL OF VETERINARY SCIENCE AND ANIMAL HUSBANDRY [ III, I

of Agriculture, Dutch East Indies, Java, for 1922 (presumably on the basis of results
reported by Rodenwaldt and his collaborators) that in view of the toxicity of " Bayer
205 ", " no higher doses could be used than ½ grm. per 150—200 kgm. on alternate
days for 20 days (10 grms. altogether) ".

Yakimoff and his collaborators [1929] describe a case af equine trypanosomiasis
(presumably caused by Trypanosoma evansi or an allied parasite) treated with
" Fourneau 309 " (which is regarded by certain workers as being identical with
" Bayer 205 ") at the rate of: 0.0125 grm. per kg. body-weight, the actual dose
given being 5 grms. The drug was given intravenously and the injection was
followed by certain toxic symptoms which, however, rapidly disappeared, and the
condition of the animal returned to normal in 3 or 4 days' time.

Edwards [1928], in India, carried out thirteen trials (at Muktesar) to test the
value of " Bayer 205 ", when injected intravenously alone, in the treatment of
experimental cases of equine surra. The results of these trials are summarized in
the following Table :—

                                                    TABLE I.

                                   Treatment by intravenous injection alone.

Serial No.

Animal

Date of

infective

inoculation

Dose of " Bayer

205 " in grms.

per 1,000 lb.

body-weight

Result

Remarks

1

Mare No. 2

15th July 1925

5.0 Aug. 15th
1.0 Sept. 21st

Died Sept. 23rd

Relapsed 21st Sept. 1925.
Intravenous intrathecal
injection given in
extremis.

2

Horse No. 52

2nd Aug. 1925

1.0 Aug. 27th
1.0 Sept. 8th

Died Sept. 25th

No tryps. in the circulat-
ing blood since 9th
September 1925 but
spinal fluid showed
parasites just before
death of animal.

3

Horse No. 19

16th July 1925

1.0 Aug. 5th
5.0 Aug. 28th

Died Aug. 29th

Relapsed 28th August
1925.

4

Horse No. 3

15th July 1925

2.5 Aug. 5th

Died Sept. 4th

No tryps. in circulating
blood since 5th August
1925 but spinal fluid
swarming with para-
sites.

5

Horse No. 64

9th Sept. 1925

5.0 Sept. 24th
5.0 Oct. 23rd

Cured

No relapse since date of
first injection.

6

Horse No. 67

14th Nov. 1925

5.0 Nov. 19th

Cured

No relapse. Infected
intrathecally.