Fifty-eight of those atrocious Dilipic vortices had been driven to ground.
"Phlogiston" and "vortices" had their day and are forgotten.
Vortices may be called an occult quality, because their existence was never proved.
The vortices, as Descartes imagined them, are not now believed in.
Possibly, gravity does part of the work, and the vortices of Descartes interfere with it.