* * * * * The committee on anthropometry is undertaking to make measurements of the physical and mental traits of members of the Association, and to encourage such work elsewhere. At the present time there exists but little exact knowledge of how people differ from each other and of the causes and results of such differences. Much has been written regarding men of genius, criminals and other classes, but without an adequate foundation of fact. The members of a scientific society are a fairly homogeneous class, regarding whose heredity, education and achievements correct information can be secured. The measurements made at the New York meeting, determining such traits as size of head, strength, eyesight, quickness of perception, memory, etc., will supply the standard type for scientific men and their variations from this type. When other classes of the community have been measured, comparisons can be made and we shall know whether scientific men are more variable than others, have larger heads, better memory and the like. Work of this character has been carried on at Columbia University for some years. The freshmen, both the men of Columbia College and the women of Barnard College, are measured and tested with care, equal attention being paid to mental and physical traits. Then the measurements are repeated at the end of the senior year. Anthropometric work has also been done in Great Britain under the auspices of Dr. Galton and Professor Pearson, and we may perhaps hope that the time will come when we shall have as exact knowledge about human differences as we now have about different kinds of butterflies. * * * * *