PH YSIOLOGICO-PSYCHOLOGICAL 1 3 



times pointed out certain cerebral structures as the parti- 

 cular dwelling-place of the mind or soul ; but these have 

 in turn been discarded, or fallen into abeyance, and we 

 consequently still find ourselves engaged in this old but 

 ever new task of research. 



In this search we confess we have, like our forefathers, 

 been always more or less interested, and, like some of 

 them, we feel inclined to throw our " stone," or moiety 

 of thought, on the " cairn " of research ; and in perform- 

 ing this self-imposed task we are deeply conscious of the 

 difficulties surrounding our position difficulties in the 

 way of being able to say anything new or true on 

 the subject, and difficulties arising from scientific inability, 

 so to speak, adequately to grasp such a piece of trans- 

 cendentalism. 



In beginning the work of research, we feel it our first 

 duty to clear the ground of encumbrances in order to 

 lay bare the material basis or anatomical framework, 

 or the biological strata, on, and in, which we think it 

 possible to reach the actual material dwelling-place, habitat, 

 or home of the mind. 



The work of baring or clearing away, or the process 

 of structural elimination, necessitates the removal of all the 

 outer coverings or envelopes of the brain, which (cover- 

 ings) may be looked upon as merely protecting and 

 supporting and as constituting the outer framework or 

 scaffolding through which is passed out and in what 

 is necessary to meet the materio-dynamic wants of the 

 organism within. 



Having accomplished this work of baring or clearing 

 away, we reveal the large and complex series of structures 

 called the brain and upper part or root of the spinal cord, 

 or, technically, the organs known as the cerebrum, cere- 

 bellum, pons Varolii^ and medulla oblongata. 



Modern anatomy has done much to elucidate the topo- 

 graphy of these intra-cranial organisms, and to fix and 

 localise the centres of the various peripheral nerve supplies, 

 but into this it will be unnecessary for our present 

 purpose to enter, we therefore pass over this most in- 

 teresting but, in the meantime, irrelevant region of the 

 subject. 



