Abstract
1.The movements of the rabbit's intestinal canal decrease gradually in relatively high temperature and high humidity environment (average temperature 28°C, humidity 70%), but they do not decrease as quickly as in very high temperatrues.
2. The process of the action seemed in the disturbance of autonomic nervous system, the change of blood circulation, and in the disturbance of the peripheral tissue. It can not be explained by just a single reason.
3. If the rabbit's intestinal canal with decreased movement in high temperature is expcsed to relatively low temperatures (average 5°C), it regains its original state quickly. The injection of high tension glucose was effective, V.B1 showed no effect, and the extract of liver and the cooled extract of liver showed the strongest action.
