169
PROLONGED GASTRIC INGESTION OF RAT'S (MUS DECUMANUS) EXCREMENT MIXED WITH CORN.
Horse Surra is enzootic in Bombay with an average rainfall of 72.7 inches, and mean yearly humidity of 81 per
cent. of saturation ; but the reverse is the case in Poona, on the Deccan plateau at an elevation of 1,857 feet with an
average rainfall of 27.6 inches, and mean yearly humidity of 53 per cent of saturation. The following experiments were
undertaken with a view to ascertain whether the excreta of rats—in whose blood the infusorian was present at the
time of its collection—could produce the disease when mixed with the grain of the horses under experiment.
(i) At Poona on the Deccan Plateau.
(ii) In Bombay.
HORSE No. LXXV.
Date.
1892.
November 20.
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December
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21.
22.
23.
24.
25.
26.
Temperature °C.
A.M.
...
36.6
37.4
37.7
37.3
37.2
37.2
1 P.M.
...
37.4
37.8
37.9
37.3
38.8
37.7
5 P.M.
37.6
37.8
38.2
38.1
37.4
38.0
37.7
Pulse.
A.M.
...
32
36
32
32
32
32
P.M.
36
36
40
36
36
40
36
Respiration.
A. M.
....
20
24
12
20
20
16
P. M.
24
28
24
24
36
24
16
Quantity
of excre¬
ment of
rats
given
daily.
Grammes.
Nil.
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„
„
vi
Hæmatozoa
in Blood.
Healthy.
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Colour.
Turbid.
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Urine.
Sp. Gr.
1,044
1,042
1,033
1,030
1,033
1,032
1,030
Reaction.
Alkaline.
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Albumen
Nil.
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Temperature
in shade
°F
Maxi¬
mum.
84.5
86.0
85.0
85.5
83.6
83.1
82.1
Mini¬
mum.
50.0
50.0
51.0
51.9
51.0
52.4
52.9
Hu¬
mi¬
dity.
64
74
65
69
70
64
62
From this date, rat's excrement was mixed with the corn, and given to the animal daily.
27.
37.2 37.7 37.8 32 36 . 20 20
vi
Absent.
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1,034
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80.0 52.4 60
Visible mucous membranes are injected, and there are numerous small petechias scattered over the
conjunctivae.
28.
29.
30.
37.5
37.4
37.5
37.5
37.3
37.5
38.1
37.7
37.6
32
32
36
36
36
36
20
20
20
24
20
20
vi
vi
ix
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„
„
„
„
1,040
1,012
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No urine passed
„
„
81.1
81.1
79.6
51.5
51.0
48.0
66
63
55
Mucous membranes clean, and conjunctivae are free from petechiæ ; appetite good.
1.
2.
3.
4.
5.
36.7
37.3
37.2
37.0
37.3
37.6
37.3
37.7
37.4
37.8
37.5
37.4
37.7
38.0
37.5
36
36
32
32
36
36
28
32
36
36
16
20
16
16
16
20
16
16
20
20
ix
viii
vii
v
xii
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1,038
1,042
1,038
1,036
1,040
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79.1
80.6
83.6
84.0
83.6
48.0
49.0
51.9
50.5
49.0
51
63
61
55
64
There are a few petechiæ on the right conjunctiva.
6.
7.
8.
9.
37.6
37.6
37.0
37.0
37.6
38.0
37.5
37.2
37.7
37.6
37.6
37.6
32
28
28
28
36
38
38
28
16
12
20
16
28
16
16
20
xiii
iv
ii
ix
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1,042
1,040
1,046
1,054
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83.6
85.5
86.5
87.5
50.0
51.0
50.0
50.5
62
53
64
69
No petechiæ on the conjunctivæ, pulse hard, and of high tension.
10
11
12
13
14
15
16
17
18
19
20
21
22
37.3
37.2
37.2
37.3
37.4
37.4
37.4
37.6
37.5
37.6
36.8
38.0
36.8
37.4
37.2
37.5
37.5
37.5
37.6
37.7
37.8
37.5
38.0
37.7
38.0
38.2
37.4
37.6
37.5
37.6
37.8
37.6
38.1
37.8
37.8
38.2
38.0
37.7
39.3
28
32
32
28
28
24
24
28
24
28
28
28
32
28
28
28
28
28
32
32
28
28
32
28
28
36
16
16
12
12
16
12
20
16
20
16
16
16
12
20
24
20
16
12
20
24
16
24
20
20
16
28
ix
v
v
iv
vi
viii
vii
ii
v
v
vi
vii
v
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„
„
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Absent.
„
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„
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„
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„
„
„
„
1,052
1,048
1,038
1,046
1,054
l,054
1,052
1,046
1,044
1,048
1,036
1,040
1,048
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Alkaline
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Slight
Trace.
Nil.
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Nil.
87.5
86.0
86.5
84.5
83.6
82.6
87.5
85.0
87.0
87.0
84.0
83.1
84.5
53.9
54.9
51.8
52.4
50.5
53.9
60.4
64.9
61.4
58.9
53.4
48.5
49.0
70
67
59
59
64
75
74
76
66
57
69
60
61
Maggots in the frog and foot, cleaned and dressed.
23
24
25
26
27
28
29
30
31
37.4
36.8
36.6
37.1
37.3
37.2
36.7
36.7
37.4
38.4
37.8
37.0
37.7
37.6
37.6
37.6
37.4
37.2
38.5
37.8
37.2
37.6
37.8
37.5
37.5
37.2
37.5
28
28
24
24
28
32
32
28
28
32
28
36
36
28
28
28
24
24
12
12
12
16
16
12
12
12
12
24
20
16
16
16
20
20
16
12
v
iii
vi
vi
iv
ii
ii
ix
x
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1,056
1,030
1,033
1,029
1,042
1,018
1,030
1,054
1,040
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86.5
86.5
85.0
86.0
84.0
86.0
83.6
84.0
85.0
49.5
51.5
57.4
56.4
56.4
58.9
57.9
55.9
55.4
65
65
71
76
64
57
80
77
65
1893.
January 1... 37.5 38.5 40.l 28 36 12 12
ix
„
„ 1,042
„
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85.5 55.4 69
Maggots in the foot, cleaned and dressed.
B 2236—43 ap