Psycho-therapy in the practice of medicine and surgery . ependently of thenervous system). But at present this possibilitystands, in the minds of most people, as a merehypotheses, as stood wireless telegraphy a dec-ade ago. How far the ordinary cells, as well as the cellsdifferentiated for specific purposes other thanmere transmission of stimuli, are capable of act-ing in a vicarious manner in emergencies is notyet known. Of course the nerves are the chief, and themost facile, media of communication, and it is byvirtue of the facilities for communication thusafforded that the several parts of
Psycho-therapy in the practice of medicine and surgery . ependently of thenervous system). But at present this possibilitystands, in the minds of most people, as a merehypotheses, as stood wireless telegraphy a dec-ade ago. How far the ordinary cells, as well as the cellsdifferentiated for specific purposes other thanmere transmission of stimuli, are capable of act-ing in a vicarious manner in emergencies is notyet known. Of course the nerves are the chief, and themost facile, media of communication, and it is byvirtue of the facilities for communication thusafforded that the several parts of the body arekept in co-ordination. As to the precise mode of action involved inthe production of the phenomena of thoughttransmission from one part of the system to an-other we have little more than theory to offer,though the hypothesis put forth appeals verystrongly to reason. A glance at this and thenwe shall proceed with the more definite purposeof our study. In their study of brain anatomy during thelast decade scientists have arrived at a solution. Figure 2. Pyramidal Nerve Cells Found Chiefly in the Brain.—McKendriclt NERVOUS STRUCTURES. 71 of many mental phenomena which before hadgreatly puzzled them. The essay of y Cajal of Spain, which was awardedthe prize of the International Medical Congressa few years ago, is among the most importantcontributions to our knowledge of brain anatomyand physiology. Prof. Cajal showed that theprincipal elements in brain tissue are nerve cells,and that each cell is a distinct entity. Itsbranches, or filaments, form temporary con-
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