When radiation has adequately lowered the temperature, these molecules will precipitate; and, having precipitated, they will not remain uniformly diffused, but will aggregate into Flocculi; just as water, precipitated from air, collects into clouds.
"Essays: Scientific, Political, & Speculative, Vol. I"
Herbert Spencer
Concluding, thus, that a nebulous mass will, in course of time, resolve itself into Flocculi of precipitated denser matter, floating in the rarer medium from which they were precipitated, let us inquire what are the mechanical results to be inferred.
"Essays: Scientific, Political, & Speculative, Vol. I"
Herbert Spencer
The respective Flocculi must be drawn not towards their common centre of gravity only, but also towards neighbouring Flocculi.
"Essays: Scientific, Political, & Speculative, Vol. I"
Herbert Spencer