ABSTRACT
Besides the phenomena of memory into which the human personality more or less enters, there exist a whole series of similar acts which represent processes of memory to some extent incompletely developed. The symptomatic study of mental maladies presents, as regards the subject, phenomena which are often very curious. The study of the brain has shown us that there are isolated regions designed to receive and elaborate independently isolated groups of sensorial impressions. The curious property which sensorial Impressions received at the same time possess, and which constitutes as it were natural families among them, is a great resource in education of intellect, and the methodic cultivation of its faculties. When a series of memories, a series of ideas, of experimental facts and scientific principles, has been imprinted on it, it admits of their being artificially evoked, contenting itself with an appeal to the first in series of memories, which is in a manner at the head of the line.
