The method to be described has been gradually adapted to the needs and demands of physicians and medical students alike, both groping for a clearer and more plastic conception of the nervous system. The underlying principles have been embodied in a course in neuro-anatomy which translates all facts into three dimensions and so incorporates ontogenetic and phylogenetic studies as to help the worker mold his data in a perspective which is thoroughly dynamic. The result is a sound, practical and tangible working basis for the application of the facts as they are experienced.
Since 1893, when Prof. Donaldson granted him the privilege of conducting an elective course in the comparative anatomy of the nervous system at the University of Chicago, and two years later also the regular course in brain anatomy at that institution, Dr. Meyer has had the opportunity from time to time of giving students of greatly varied