"Molecular terrestrial masses, composed of the "ultimate ether" bound latent in substance, are sympathetically drawn to the earth's neutral center according to the density of their molecular aggregation, from which must be deducted their celestial sympathetic outreach. In other words, molecular weight consists in the difference between these forces. Either one can be intensified by polar or anti-polar vibrations, giving either one predominance. If the celestial (repulsive) predominates, the mass will rise, its velocity proportionate to the concentration of the dominant or the "negative thirds of its mass chords" inducing high neutral radiation together with "celestial attraction." The "terrestrial propulsive" and "celestial attractive" cause ascension and the "celestial propulsive" and "terrestrial attractive" cause descension or increased weight." Snell Manuscript

See Also

Air-ship
Gravity
Keelys Gravity Control with 369
Levitation