We have now reached a point from which we can look back over the ground we have traversed and note the points of difference between our view and the well-known theory of Le Bon. The argument of the latter is as follows: (1) From the standpoint of psychology, the crowd, as the term is here defined, is not merely a group of people, it is the appearance within such a group of a special mental condition, or crowd-mind. (2) The sentiments and ideas of all the persons in the gathering take one and the same direction. (3) Conscious personality vanishes. (4) A collective mind is formed: This is Le Bon's "Law of the mental unity of crowds." (5) This collective mind consists in the main of "general qualities of character" which are our common racial inheritance. It is an "unconscious substratum" which in the crowd becomes uppermost, dominating over the unique personal consciousness. (6) Three causes determine the characteristics of the crowd-mind, (a) From purely numerical considerations, the individual acquires a sentiment of invincible power which encourages him in an unrestrained yielding to his instincts, (b) Contagion, or imitation, and (c) hypnotic suggestion cause the individuals in the crowd to become "slaves of all the unconscious activities of the spinal cord." (7) The resulting characteristics of the crowd are (a) a descent of several rungs in the ladder of civilization, (b) a general intellectual inferiority as compared with the isolated individual, (c) loss of moral responsibility, (d) impulsiveness, (e) credulity, (f) exaggeration, (g) intolerance, (h) blind obedience to the leader of the crowd, (i) a mystical emotionalism. (8) The crowd is finally and somewhat inconsistently treated by Le Bon as being identical with the masses, the common people, the herd.