The reflected or looking-glass self seems to have three principal elements: the imagination of our appearance to the other person; the imagination of his judgment of that appearance; and some sort of self-feeling, such as pride or mortification. The comparison with a looking-glass self hardly suggests the second element, the imagined judgment, which is quite essential. The thing that moves us to pride or shame is not the mere mechanical reflection of ourselves, but an imputed sentiment, the imagined effect of this reflection upon another's mind. This is evident from the fact that the character and weight of that other, in whose mind we see ourselves, makes all the difference with our feeling.[56] Veblen has made a subtle analysis of the way in which conduct is controlled by the individual's conception of his social rôle in his analysis of "invidious comparison" and "conspicuous expenditure."[57] d) _Biological and social inheritance._--The distinction between biological and social inheritance is sharply made by the noted biologist, J. Arthur Thomson, in the selection entitled "Nature and Nurture." The so-called "acquired characters" or modifications of original nature through experience, he points out, are transmitted not through the germ plasm but through communication. Thorndike's "Inventory of Original Tendencies" offers a detailed classification of the traits transmitted biologically. Since there exists no corresponding specific analysis of acquired traits, the following brief inventory of types of social heritages is offered. TYPES OF SOCIAL HERITAGES (a) means of communication, as language, gesture, etc.; (b) social attitudes, habits, wishes, etc.; (c) character; (d) social patterns, as folkways, mores, conventions, ideals, etc.; (e) technique; (f) culture (as distinguished from technique, formal organization, and machinery); (g) social organization (primary group life, institutions, sects, secondary groups, etc.). On the basis of the work of Mendel, biologists have made marked progress in determining the inheritance of specific traits of original nature. The selection from a foremost American student of heredity and eugenics, C. B. Davenport, entitled "Inheritance of Original Nature" indicates the precision and accuracy with which the prediction of the inheritance of individual innate traits is made. The mechanism of the transmission of social heritages, while more open to observation than biological inheritance, has not been subjected to as intensive study. The transmission of the social heritage takes place by communication, as Keller points out, through the medium of the various senses. The various types of the social heritages are transmitted in two ways: (a) by tradition, as from generation to generation, and (b) by acculturation, as from group to group.