The Brain And Maternal Functions. Experiments In Comparative Physiology And Psychology In Two Volumes, by Carlo Ceni, director of the clinic for mental and nervous disorders of the Royal University of Cagliari, Italy. Published in 1922.

The study of psychobiology which aims at finding the relation between animal and human life, is so full of difficulties as to justify any attempt to clear this obscure problem. These difficulties consist mainly in properly determining the importance and correlation between external and internal stimuli and between those arising in the conscious mind and the unconscious. The volumes which the author has written are the fruit of those comparative researches which he continued for several years in an endeavor to elucidate, especially in the light of psychology, the maternal functions.

The research leads into the field of anatomy and physiology and attempts to correlate psychic and material phenomena and to make general deductions from the most complex and most highly evolved functions of man.

Very few psychologists, or even spiritualists, limit the term psychic to only that which succeeds in projecting itself upon our consciousness as a result of introspective observation. Even Richet, who is of the opinion that such introspection cannot have any other objective but the knowing of the individual, concludes that the science of psychology must