Comparative Physiology of the Brain and Comparative Psychology

here gives of his own and cognate investigations and experiments, and in the conclusions which he feels justified in drawing from them. Starting with a consideration of reflexes, Professor Loeb enquires what part the central ganglia play in their production. He is of opinion that we must deprive them of all specific significance, not only in the case of simple reflexes and instincts, but also in that of spontaneous movements. Their importance lies in the fact that they, in common with other nerve structures, possess in an enhanced degree that irritability and conductibility which is a characteristic of all protoplasm. He seems at times