244 
Drug Treatment of Redwater 
Records of Control Cows I to IV. 
Control Cow I. 
(7. vi. 09) 
Day Temp.'T. 
1 
— 
Inoculated with 30 c.c. of virulent blood (from Cow X). 
2 
102-0 
a.m. 
101-6 
p.m. 
3 
101-4 
a.m. 
101-6 
p.m. 
4 
101-2 
a.m. 
101-8 
p.m. 
5 
101-0 
a.m. 
6 
102-6 
105-2 
p.m. 
9 a.m. 
°/o of 
infected % 
r.b.c. O 
% 
PP 
11.30 a.m. Parasites found ... 
"05 55 
37 
8 
106-2 
5.30 p.m. 
0-6 59 
36 
5 
7 
107-4 
9.30 a.m. Haemoglobinuria , urine very dark 
4-0 64 
33 
3 
108-4 
4.45 p.m. Cow very ill 
2-2 54 
33 
13 
7.15 p.m. 
5-0 49 
45 
6 
106-2 
9 p.m. 
8 
103-0 
9.30 a.m. 
11 a.m. 
3-2 53 
45 
2 
2.40 p.m. Haemoglobinuria more marked 
than on previous day. 
101-6 
4 p.m. 
5.30 p.m. 
7.15 p.m. Cow very feeble, breathing rapid. 
1-2 
49 
48 
(15. vi. 09) 9 99-4 
8 p.m.... 
10 a.m. Very feeble andill. Haemoglobinuria. 
1-0 
55 
41 
11 a.m. 
1.50 p.m. Haemoglobinuria slightly less 
marked. Cow died. 
o-i 
61 
37 
3 
4 
2 
Autopsy :—The animal showed typical appearances, spleen engorged, friable, much 
enlarged (weight 7—8 lbs.); liver jaundiced ; kidneys with haemorrhagic infarcts at cortex; 
heart with petechiae dotting the pericardium and muscle ; lungs normal; brain anaemic ; 
blood very watery. Microscopic examination of smears made from the jugular blood and 
various organs two hours after death revealed very few parasites; only 5 infected blood 
corpuscles were found in a spleen smear [(PP) and (0)] and fewer still were found in 
smears from the liver, brain, and bone-marrow; none were found in smears from the 
kidneys, lungs, and heart-muscle. 
