children, etc. During the study of the psychology of the child,
scholars began to substitute for this term the expression
"genetic psychology." For it was found that the big-genetic
principle was valid for the development both of the psychic and
the physical life. This principle means that the history of the
species is repeated in the history of the individual; a truth
substantiated in other spheres; in philology for example. The
psychology of the child is of the same significance for general
psychology as embryology is for anatomy. On the other hand, the
description of savage peoples, of peoples in a natural
condition, such as we find in Spencer's Descriptive Sociology
or Weitz's Anthropology is extremely instructive for a right
conception of the psychology of the child.

It is in this kind of psychological investigation that the
greatest progress has been made in this century. In the great
publication, Zeitschrift fur psychologie, etc., there began in
1894 a special department for the psychology of children and
the psychology of education. In 1898, there were as many as one
hundred and six essays devoted to this subject, and they are
constantly increasing.

In the chief civilised countries this investigation has many
distinguished pioneers, such as Prof. Wundt, Prof. T. H. Ribot,
and others. In Germany this subject has its most important
organ in the journal mentioned above. It numbers among its
collaborators some of the most distinguished German
physiologists and psychologists. As related to the same subject
must be mentioned Wundt's Philosophischen Studien, and partly
the Vierteljahrschrift fur Wissenschaftlichie Philosophie. In