ascensive

The simple trial proved a complete success, due, as it appeared to them, to the ascensive power of a cloud of smoke.

Does it heat so fast as to keep up the ascensive force without intermission, at twenty-five, or twenty, or ten miles the hour?

His main reliance was on the latent heat supposed to be given out during condensation, for his ascensive storm power.

What is the ascensive power of an area of atmosphere of 100°?