189o.] The Evolution of Mind. > 1015 
widely separated localities of record, and their conduction to 
added portions of the center or locality of gray tissue, where 
consciousness would necessarily perceive the resemblances and 
differences thus set before it. 
Finally, the lower concepts thus gathered from perceptions could 
be transmitted to a functionally still higher center, where their re- 
semblances and differences should become obvious to conscious- 
ness, and the highest concepts, inductions, or judgments result. 
In the tracing of the development of this mechanism and its 
function, I once more call attention to the fact that without the 
presence of consciousness the whole process is useless as a men- 
tal evolution. I must consider later the question as to how or 
why the specialization or location of sense-perception should take 
place. That it actually exists has been demonstrated by the 
researches into brain and cordal physiology conducted in recent 
years. 
Leaving for a moment the question of the physical basis, I 
revert to the metaphysical side of evolution of mind. It is gener- 
ally admitted by evolutionists in the field of psychology that ex- 
perience is the immediate agent of such evolution ; or, in other 
words, that it is a process of education, the possibility of such 
education being dependent on consciousness and memory. There 
is here no ambiguity as to the method. Consciousness is edu- 
cated by the direct action of the environment as determined by 
the active or passive condition of the organism. In other words, 
the environment impresses itself directly on the consciousness of 
the organism, and a memory remains, which is the guide to the 
future movements of the latter, and this process has been in 
operation ever since life has existed, and the result has been the 
human mind. 
We have hére no promiscuous or fortuitous activity of sensa- 
tion, nor is any possible, since sensations are only produced 
by a stimulus from a definite material source. There is no 
«survival of the fittest" at this stage of the process, but a 
calling into being of new sensations, and consequently of new `, 
movements. Here we have the origin of mental changes dis- 
tinctly before us, and the question of their survival comes up at 
' Amer. Nat.—November.—3. : 
