| 2.25 | 1 | minute. |
| .27 | 0.5 | “ |
| .28 | 2 | “ |
| .31 | 4.5 | “ |
| .37 | 3.5 | “ |
| .47 | 4.5 | “ |
It seems probable that in this case just as in some of the cases in which the splanchnic nerves were stimulated (see [p. 166]), the adrenals had been well-nigh exhausted because of the cat’s being caged near dogs, and that the emotional flare-up practically discharged the glands, for repeated attempts later to reproduce the initial rapid clotting by stimulation of the splanchnic nerves were without result.
Evidence presented in previous chapters makes wholly probable the correctness of the inference that the faster coagulation which follows emotional excitement is due to adrenal discharge from splanchnic stimulation. In this relation the effect of severance of the splanchnics on emotional acceleration of the clotting process is of interest. The following cases are illustrative:
Oct. 29.—A cat was left on the holder for ten minutes while the femoral artery was uncovered under local anesthesia. The blood removed was clotted in a half-minute. The animal was much excited. It was now quickly etherized and the brain pithed forward from the neck. The tests resulted as follows:
| 10.51 | 1 | minute. |
| .53 | 0.5 | “ |
| .55 | 0.5 | “ |
| .57 | 0.5 | “ |
| 11.07 | Cut left splanchnic. | |
| .12 | “ right splanchnic. | |
| .21 | 3.5 | minutes. |
| .26 | 3.5 | “ |
The original record of this case is given in Fig. 34.
Figure 34.—About two-thirds original size. Record of rapid clotting (less than a half-minute) after emotional excitement. At 11:07 the left, at 11:12 the right splanchnic nerves were cut; the clotting then required 3:5 minutes. The marks below the time record indicate the moments when the samples were drawn.
Nov. 5.—A cat was etherized at 2.35. At 2.39 artificial respiration by tracheal cannula was begun, the air passing through an ether bottle. The clotting occurred thus:
| 2.53 | 1.5 | minutes |
| .57 | 1.5 | “ |
| 3.05 | 1.5 | “ |
| .15 | 1.5 | “ |
| .25 | Both splanchnics cut and tied in thorax. | |
| .35 | 4.5 | minutes |
| .55 | 4.5 | “ |