Luys. The Brain and its Functions.
Mantagazza. Physiognomy and Expression.
Maudsley. The Physiology of Mind; Body and Will.
Miller. Four Handed Folk.
Peschel. The Races of Man.
Pettigrew. Animal Locomotion.
Peal. Nature, Vol. XXI.
Quatrefages. The Human Species.
Reclain. Body and Mind.
Romanes. Animal Intelligence; Mental Evolution in Animals; Mental Evolution in Man; The Jelly-Fish, Star-Fish, and Sea-Urchin.