In the case of a panic or a stampede, however, where there is no common end, the crowd acts like a flock of sheep. But a stampede or a panic is not a crowd in Le Bon's sense. It is not a psychological unity, nor a "single being," subject to "the mental unity of crowds."[296] The panic is the crowd in dissolution. All effective methods of dispersing crowds involve some method of distracting attention, breaking up the tension, and dissolving the mob into its individual units.

c) Types of mass movements.—The most elementary form of mass movement is a mass migration. Such a mass movement displays, in fact, many of the characteristics of the "animal" crowd. It is the "human" herd. The migration of a people, either as individuals or in organized groups, may be compared to the swarming of the hive. Peoples migrate in search of better living conditions, or merely in search of new experience. It is usually the younger generation, the more restless, active, and adaptable, who go out from the security of the old home to seek their fortunes in the new. Once settled on the new land, however, immigrants inevitably remember and idealize the home they have left. Their first disposition is to reproduce as far as possible in the new world the institutions and the social order of the old. Just as the spider spins his web out of his own body, so the immigrant tends to spin out of his experience and traditions, a social organization which reproduces, as far as circumstances will permit, the organization and the life of the ancestral community. In this way the older culture is transplanted and renews itself, under somewhat altered circumstances, in the new home. That explains, in part, at any rate, the fact that migration tends to follow the isotherms, since all the more fundamental cultural devices and experience are likely to be accommodations to geographical and climatic conditions.

In contrast with migrations are movements which are sometimes referred to as crusades, partly because of the religious fervor and fanaticism with which they are usually conducted and partly because they are an appeal to the masses of the people for direct action and depend for their success upon their ability to appeal to some universal human interest or to common experiences and interests that are keenly comprehended by the common man.

The Woman's Christian Temperance Crusade, referred to in the materials, may be regarded, if we are permitted to compare great things with small, as an illustration of collective behavior not unlike the crusades of the eleventh and twelfth centuries.

Crusades are reformatory and religious. This was true at any rate of the early crusades, inspired by Peter the Hermit, whatever may have been the political purposes of the popes who encouraged them. It was the same motive that led the people of the Middle Ages to make pilgrimages which led them to join the crusades. At bottom it was an inner restlessness, that sought peace in great hardship and inspiring action, which moved the masses.

Somewhat the same widespread contagious restlessness is the source of most of our revolutions. It is not, however, hardships and actual distress that inspire revolutions but hopes and dreams, dreams which find expression in those myths and "vital lies," as Vernon Lee calls them,[297] which according to Sorel are the only means of moving the masses.

The distinction between crusades, like the Woman's Temperance Crusade, and revolutions, like the French Revolution, is that one is a radical attempt to correct a recognized evil and the other is a radical attempt to reform an existing social order.

II. MATERIALS

A. SOCIAL CONTAGION

1. An Incident in a Lancashire Cotton Mill[298]