Oct. 25.—A cat was etherized and maintained in uniform ether anesthesia. After forty minutes of preliminary observation the left splanchnic nerves were stimulated in the abdomen. Following are the figures which show the effects on the coagulation time:
| 3.00 | 4 | minutes |
| .07 | 5.5 | “ |
| .14 | 4 | “ |
| .32 | 4.5 | “ |
| .39 to .40 | Stimulation of left splanchnic. | |
| .42 | 5 | minutes |
| .49 | 5 | “ |
| .56 | 2 | “ |
| 4.00 | 1 | “ |
| .03 | 2.5 | “ |
| .07 | 2.5 | “ |
| .11 | 3 | “ |
| .16 | 2 | “ |
| .20 | 1.5 | “ |
| .23 | 4 | “ |
| .29 | 5.5 | “ |
| .40 | 5.5 | “ |
| .50 | 5 | “ |
In this instance at least ten minutes elapsed between the end of stimulation and the beginning of faster clotting. The period of faster clotting, however, lasted for about a half-hour, during which the coagulation time averaged 2.1 minutes, only forty-three per cent of the previous average of 4.8 minutes. It is noteworthy that the curve (see [Fig. 29]), while lower, shows oscillations not unlike those which follow injection of adrenin (see [p. 155]).
Figure 29.—Shortening of coagulation time after stimulation of the left splanchnic nerves, 3:39–:40.
The primary delay of the effect is not always, indeed it is not commonly, present:
Nov. 6.—A cat was anesthetized (1.40 p.m.) with urethane, and later (3.05) its brain was pithed. The following observations on the coagulation time show the prompt effect of splanchnic stimulation:
| 3.36 | 7 | minutes |
| .46 | 6 | “ |
| 4.02 to .05 | Stimulation of left splanchnic in abdomen. | |
| .08 | 4 | minutes |
| .10 | 3 | “ |
| .18 | 3.5 | “ |
| .23 | 6.5 | “ |
In [Fig. 30] is presented the original record of the shortening of the coagulation after stimulation of the left splanchnic nerve (Nov. 8) in a cat with brain pithed.
