May there not be a like unconscious psychic determination of much that is called social behavior? It is my thesis that this is so, and that there are certain types of social behavior which are characterized by unconscious motivation to such a degree that they may be placed in a definite class of psychological phenomena. This group of phenomena I have, following to some extent the terminology of Le Bon, called "The Crowd." I wish there were a more exact word, for it is very difficult to use the word crowd in its psychological sense without causing some confusion in the mind of the reader. In ordinary speech "a crowd" is any gathering of people. In the writings of Le Bon, as we shall see, the word has a special meaning, denoting not a gathering of people as such, but a gathering which behaves in a certain way which may be classified and described psychologically as "crowd mentality." Not every gathering of people shows this crowd-mentality. It is a characteristic which appears under certain circumstances. In this discussion the word "crowd" must be understood to mean the peculiar mental condition which sometimes occurs when people think and act together, either immediately where the members of the group are present and in close contact, or remotely, as when they affect one another in a certain way through the medium of an organization, a party or sect, the press, etc. The crowd while it is a social phenomenon differs greatly from the social as such. People may be social--the family is an example of this--without being a crowd either in thought or action. Again a crowd--a mob is an example of this--may be distinctly antisocial, if we attach any ethical meaning to the term. Both the individual and society suffer, as we shall see, from crowd-behavior. I know of nothing which to-day so menaces not only the values of civilization, but also--it is the same thing in other words, perhaps--the achievement of personality and true knowledge of self, as the growing habit of behaving as crowds. Our society is becoming a veritable babel of gibbering crowds. Not only are mob outbreaks and riots increasing in number, but every interest, patriotic, religious, ethical, political, economic, easily degenerates into a confusion of propagandist tongues, into extravagant partisanship, and intemperance. Whatever be the ideal to which we would attain, we find the path of self-culture too slow; we must become army worms, eating our way to the goal by sheer force of numbers. The councils of democracy are conducted on about the psychological level of commercial advertising and with about the same degree of sincerity. While it cannot be said that the habit of crowd-making is peculiar to our times--other ages, too, have indulged in it--it does seem that the tendency to crowd-mindedness has greatly increased in recent years.