Abstract
The author shows dynamically that a cyclone can be maintained by the latent heat of condensation and calculates the values of the elements, i.e. the wind velocities, the temperature deviation and that of the pressure, when the intensity of precipitation is given. The results do not contradict so much to the observational common knowledge and several characteristic properties of actual cyclones are well understood at least in his own opinion, though he has treated an ideal case on the assumption that the elements are expressed by one cylindrical function with respect to γ. In the next he gets the graphs of the whirlwind and the pressure which correspond considerably to ordinary records of tropical cyclones by a simple theory. The discussion of cyclones owing to surface heating in the 2nd paragraph is only intended for the convenience of comparison with the subject problem. -Typhoons may be originated from them?
