1890.] The Evolution of Mind. 899 
THE EVOLUTION OF MIND. 
BY E. D. COPE. 
Bo entering on this subject we must consider the nature 
of mentality. Mental acts display a great range from sim- 
ple to complex. An attempt is made to exhibit their relations in 
the following table : 
Class I. Perceptions (presentations). 
Class II. Ideas (representations). 
Division A. Memory of Perceptions. 
Division B. Affection (taste, emotion). 
Division C. Imagination. 
Division D. Ratiocination. 
Method a. Conception (generalization). 
Ist Grade. 
2d Grade. 
3d Grade, etc., etc. 
Method s. Induction (inference). 
ist Grade. 
2d Grade. 
3d Grade, etc. 
Method c. Deduction (predication). 
Division E. Will. 
The divisions of this table are not mutually exclusive. With 
regard to the methods of Ratiocination as above enumerated, it is 
to be noted that Induction and Deduction are distinct in kind 
from Conception, and are based on the latter, as well as on the 
simple Memory of Perceptions (Division A). While Conceptions 
are classifications, Induction and Deduction follow the Memory 
of Perceptions whether classified or simple. Will is expressed in 
action induced by any of the faculties embraced in the four pre- 
ceding divisions. 
