OF TEMPERATURE UPON THE BEAT OF THE DOG’S HEART. 
683 
Experiment IV. 
May 10, 1882.—Dog weighed 10,300 grms. Narcotised by subcutaneous injection 
of acetate of morphia before commencing the operation of isolating the heart. Venous 
pressure that due to a column of defibrinated Calf’s blood 15 centims. in height. 
Heart isolated at 12 h 25 m p.m. 
Number of 
observation. 
Time, p.m. 
Carotid pressure 
in millims. of Hg. 
Temperature 
in aortic arch. 
Pulse-rate 
per minute. 
Remarks. 
li. m. 
1 
12 45 
118 
34T(?) 
158 
It seems almost certain that tlie 
2 
12 47 
117 
34-5 
151 
reading of the thermometer 
3 
12 49 
116 
35-1 
157 
in observation 1 was a degree 
4 
12 
51 
116 
35-5 
156 
out, and should be 35"1°. 
5 
12 
53 
116 
37T 
183 
6 
12 
54 
116 
39-0 
195 
7 
12 
55 
116 
38-0 
180 
8 
12 56 
116 
38-3 
18P5 
9 
12 
58 
116 
38-5 
184-5 
10 
12 
59 
116 
38-5 
183-0 
11 
1 
00 
116 
38-0 
172-5 
12 
1 
02 
112 
37-5 
166-5 
13 
1 
03 
113 
36 - 5 
157-5 
14 
1 
05 
112 
35-0 
137-0 
15 
1 
06 
114 
34-0 
127-5 
16 
1 
08 
114 
33-5 
126-0 
17 
1 
09 
112 
33-5 
126-0 
18 
1 
11 
111 
32-7 
114 
19 
1 
13 
110 
31-9 
108 
20 
1 
14 
111 
31-5 
102 
21 
1 
15 
113 
31-0 
99 
22 
1 
17 
113 
30-5 
92 
23 
1 
20 
112 
31-5 
no 
24 
1 22 
112 
32-5 
119 
25 
1 
24 
110 
339 
133-5 
26 
1 
27 
no 
34-0 
129 
Lungs pricked since last observa- 
27 
1 30 
113 
34-5 
139-5 
tion. 
28 
1 
32 
114 
35-0 
140 
29 
1 34 
114 
35-5 
148 
30 
1 37 
(?) 
36-5 
179 
Pericardium cut away since last 
31 
1 
38 
101 
38-0 
192 
observation. 
32 
1 
39 
105 
39-0 
198 
33 
1 40 
107 
39'6 
199 
34 
1 42 
108 
39'0 
189 
After this the heart suddenly 
ceased to pump round, and its 
right auricle was seen to be 
paralysed. The lungs were 
extremely oedematous. 
The chart on Plate 49 represents graphically the results of the preceding experiment. 
