272 NATURAL SCIENCE [October 
looked at other times, or esthetic judgments about their beauty ; 
one feels no ideas about what movements he will make, but feels 
himself make them, feels his body throughout. Self-consciousness 
dies away. Social consciousness dies away. The meanings, and 
values, and connections of things die away. One feels sense- 
impressions, has impulses, feels the movements he makes; that 
is au. 
And after an illustration from such a game as tennis, Mr 
Thorndike adds :—“ Finally, the elements of the associations are not 
isolated. No tennis-player’s stream of thought is filled with free- 
floating representations of any of the tens of thousands of sense- 
impressions or movements he has seen and made on the tennis- 
court. Yet there is consciousness enough at the time, keen con- 
sciousness of the sense-impressions, impulses, feelings of one’s 
bodily acts. So with the animals. There is consciousness enough, 
but of this kind.” 
There is much in Mr Thorndike’s monograph to which there is 
not space to allude. He is weak in that historical sense which 
gives continuity to the development of scientific interpretation, but 
I regard his investigation as one of great promise, and believe that 
its further prosecution will lead to other results not less important 
than those which he here presents. Experimental work in this 
field is sorely needed; and Mr Thorndike has proved himself one 
who is able and willing to carry it out. 
C. Luoyp MorGan. 
16 CANYNGE Roan, 
CLIFTON, BRISTOL. 
