684 
Journal of A griculiural Research voi. xxi, No. q 
No. 12.—Twelve-year-old animal that apparently died from infectious 
equine anemia; positive diagnosis doubtful. 
At autopsy, on May 24, 1919, there were found about 150 Gastrophilus 
spp., a moderate infestation of the cecum and colon with Strongylus and 
Cylicostomes, and a small aneurism of the anterior mesenteric artery con¬ 
taining a few live embryos. 
No. 10.—Aged, healthy animal at time of first blood count; at the last 
the animal was very ill with septicemia. 
At autopsy, on January 8, 1919, there were found 35 Gastrophilus spp., 2 
Setaria in the abdominal cavity, and a few Strongylus and Cylicostomes 
in the cecum and colon. 
Table; IV.— Blood counts of horses with acute cases of infectious equine anemia 
Tag 
No, 
Date. 
Hemo¬ 
globin. 
Erythrocytes. 
Leuco¬ 
cytes. 
Lym¬ 
pho¬ 
cytes. 
Poly- 
morpho- 
nu- 
clears. 
Mono¬ 
nu¬ 
clears. 
Eosino- 
philes. 
Mast 
cells. 
Tran- 
sitiou- 
als. 
'Mar. 
1,1919 
80 
6,934,000 
4, 360 
34 - 2 
53-0 
3-6 
9 -o 
O. 2 
O 
T T 
Mar. 
8,1919 
80 
8, 132, OOO 
7,261 
21. 2 
76.8 
2. O 
0 
O 
O 
JL JL. • . 
Dec. 
16,1918 
IOO 
8,320, 000 
7,341 
33 -o 
57-2 
5.8 
4.0 
O 
0 
Jan. 
3 , 1^9 
IOO 
7,366,000 
7 , 639 
27. 4 
61. 2 
8.2 
3-2 
O 
O 
Mar. 
6,1919 
IOO 
7, 932, 000 
5, 482 
28. 2 
56. 2 
9 -o 
6.6 
O 
0 
6... 
iMar. 
25,1919 
80 
7, 629,000 
9, 870 
49. 2 
41.4 
7. 2 
2. 2 
O 
O 
Mar. 
27,1919 
80 
7, 368, 000 
7,296 
20. 6 
72.4 
3-6 
3 - 2 
. 2 
O 
(Apr. 
8, 1919 
80 
6, 884, 000 
7,329 
22. 4 
73-6 
3- 6 
•4 
O 
O 
Nov. 
7,1918 
20 
1, 856, 000 
4,683 
30. 6 
30. 2 
3- 6 
0 
O 
0 
M.. 
f Nov. 
7, 1918 
70 
3, 824,000 
6, 281 
39 - 6 
28. 4 
9. 2 
1. 0 
•4 
3 1 - 4 
N.. 
\Nov. 
l6,I9I8 
50 
4,864,000 
9, 669 
29. O 
36.7 
3 - 3 
1. 0 
0 
3°- 0 
Nov. 
7,1918 
80 
4,320, 000 
6, 993 
22. 6 
66. 2 
9. 2 
2. 0 
0 
0 
L... 
Oct. 
8,1918 
IOO 
8, 634, 000 
6, 981 
26. 6 
63. 0 
4-6 
3-8 
0 
0 
Nov. 
2,1918 
90 
7,824, 000 
9,873 
33-6 
61. 0 
3 - 2 
2. 2 
0 
0 
7^8 
Nov. 
14,1918 
60 
6,408, 000 
6,321 
14. 2 
82. 2 
3- 6 
0 
0 
0 
Nov. 
I 5> 19^ 
70 
6,488, 000 
7,369 
23. 6 
71.4 
4. 2 
.8 
0 
0 
June 
2,1919 
50 
4, 872, 000 
6,329 
35-4 
60. 2 
4. 2 
. 2 
0 
0 
K.. 
June 
17,1919 
30 
3,486, 000 
5,317 
28. 4 
57-4 
11. 2 
3 - 0 
0 
1 0 
T 
Mar. 
26,1919 
80 
37-8 
55-4 
2. 6 
4. 2 
0 
0 
j • • • 
Average. 
73-6 
6, 285, 600 
7, 021 
2 9-3 
58.1 
5-4 
2 -5 
.04 
3-3 
No. 11 .—Aged animal with an acute experimental case of infectious 
equine anemia; inoculated February 19, 1919, and died March 23, 1919. 
At autopsy, there were found about 100 Gastrophilus spp. in the 
pylorus, 1 Setaria in the abdominal cavity, and a moderate infestation 
of the cecum and colon with Strongylus and Cylicostomes. 
No. 6.—Fight-year-old gelding with an acute experimental case of 
infectious equine anemia injected March 6, 1919. 
At autopsy on March 10, 1919, there were found about 30 Gastroph¬ 
ilus spp. and 25 Setaria equina. 
M.—Four-year-old mare with an acute case of infectious equine anemia. 
At autopsy, on November 9, 1919, there were found a few Gastrophilus 
spp., one Setaria, a small worm-free aneurism of the anterior mesenteric 
