The Cause of Rain and the Structure of the Atmosphere

Abstract

In a paper entitled “On the Cause of Trade-Winds,” which I recently had the honor of reading before the Society, I gave my reasons for, assuming that the actuality which lies behind the really abstract terms. “a center of high pressure” or “an anti-cyclone” is a body of, unsaturatecl or dry surface-air, or what may be called an air-cushion. I now propose to continue this train of thought by dealing in a similar, way with low pressures, or cyclones, thereby trying, if possible, to arrive at a definite conclusion as to the actual cause of rain; rain being the most prominent feature of cyclones, or low pressures.