- 1890,] The Evolution of Mind. 1013 
Anger. Beauty. 
Parental instinct. Wonder. 
Sex. Power. 
Power. Pity. 
Beauty. Sex, 
Wonder. Parental instinct. 
The qualities enumerated in the first column follow each other 
directly in order from the simple to the complex. In the second 
column this order is disturbed by the earlier appearance of 
the derivative emotions, beauty, wonder, and pity or benevo- 
lence, and the later appearance of the simple emotion of sex. 
Thus in psychological as in other evolution some of the products 
of development appear earlier and earlier in life in accordance 
with the law of acceleration. 
It is evident that a capacity for ideation has been developed, 
which is capable of conception or generalization. This is seen in 
the capacity which animals frequently display of adapting them- 
selves to new situations. This is accomplished by the conception 
of the general resemblance of the new case to certain old ones, 
although there may be much difference in detail. Thus Mr. 
Belt tells of an army of ants on the march which crossed a rail- 
road track on which cars were frequently passing. The wheels 
crushed the ants as they crossed the rails. This was observed 
by the ants, who at last escaped the danger by burrowing under 
the rails. Mr. Beaumont relates that some Termites which he 
had imprisoned in a glass jar with perpendicular sides escaped 
from it by an ingenious use of a secretion of their bodies which 
they ordinarily used in building their nests and covered road- 
ways. The soldiers furnished the workers with a semifluid 
cementfrom their bodies, which the latter deposited on the glass, 
where it hardened. They thus made a roadway to the top of 
vessel, over which the insects passed out. The faculty has plainly 
developed from the simple to the more complex. The difference 
between the dart-throwing of the Infusorian Dinidium and the 
dam-building of the beaver is one of degree only, and not of 
kind. The difference of degree resides in the more numerous 
means necessary to the beaver’s act than to that of the Dinidium, 
