The Bird Clouds

We supposed at first that the mental unity of these little avians was telepathic, but in fact it was not. It was based on the unity of a complex electromagnetic field, in fact on "radio" waves permeating the whole group. Radio, transmitted and received by every individual organism, corresponded to the chemical nerve current which maintains the unity of the human nervous system. Each brain reverberated with the ethereal rhythms of its environment; and each contributed its own peculiar theme to...

 Mental Unity of Crowds

Under certain given circumstances, and only under those circumstances, an agglomeration of men presents new characteristics very different from those of the individuals composing it. The sentiments and ideas of all the persons in the gathering take one and the same direction, and their conscious personality vanishes. A collective mind is formed, doubtless transitory, but presenting very clearly defined characteristics. The gathering has thus become what, in the absence of a better expression,...