race; it must be tested by the more precise methods of the anthropological laboratory. Satisfactory studies of the Negro should be much more numerous, but there are a few informative ones. Physical characters are first to be considered.
As a result of the careful measurement of many skulls, Karl Pearson17 has come to the following conclusions:
"There is for the best ascertainable characters a continuous relationship from the European skull, through prehistoric European, prehistoric Egyptian, Congo-Gaboon Negroes to Zulus and Kafirs.
"The indication is that of a long differentiated evolution, in which the Negro lies nearer to the common stem than the European; he is nearer to the childhood of man."
This does not prove any mental inferiority: there is little or no relation between conformation of skull and mental qualities, and it is a great mistake to make hasty inferences from physical to mental traits. Bean and Mall have made studies directly on the brain, but it is not possible to draw any sure conclusions from their work. A. Hrdlička found physical differences between the two races, but did not study traits of any particular eugenic significance.
On the whole, the studies of physical anthropologists offer little of interest for the present purpose. Studies of mental traits are more to the point, but are unfortunately vitiated in many cases by the fact that no distinction was made between full-blood Negroes and mulattoes, although the presence of white blood must necessarily have a marked influence on the traits under consideration. If the investigations are discounted when necessary for this reason, it appears that in the more elementary mental processes the two races are approximately equal. White and "colored" children in the Washington, D. C., schools ranked equally well in memory; the colored children were found to be somewhat the more sensitive to