THE HISTOPATHOLOGY OF NUTRITIONAL ENCEPHALOMALACIA OF CHICKS.

Whatever may be the nature of the nutritive error or deficiency which in chicks is responsible for encephalomalacia, the immediate cause must be looked for in some agent or condition which impairs the capillary circulation of the brain. The essential lesion is an ischemic necrosis, followed, if the animal survive, by reparative organization of the dead tissue.