278 Miscellaneous Intelligence. 
forms are eminently convertible, yet utterly indestructible. And 
to avoid that fruitful source of disagreement among the ablest 
men, which has arisen from the ambiguous signification of the 
word, we must adopt the meaning which is finding general ac- 
ceptance, and define force as “ tha i 
cing or resisting motion ;” thus clearly discriminating between 
force and its cause. 
. 
honored ex-president Dr. Barnard presented an argument, § 
vigorous and clear that I see no room for an adequate rejoiner, in 
: oe 
Organic changes are cal effects, and may be received without hesitation 
as the representative equivalents of physical forces expended. But sensation, will, 
emotion, passion, thought, are in no conceivable sense physical.”—[Proc. Amer. 
., Chicago, p. 89. 
= philoso makes thought a form of force, makes thought a mode | 
i inking being into a mechanical automaton, whose Sen- 
a , and whose conscious existence must forever 
cease when the exhausted organism shall at length fail to respond to these exter 
ulses.”—-[Jbid, p. 91.] 
: ught cannot be physical force, because it admits of no measure. * * A 
thing unsusceptible of measure cannot be a quantity, and a thing that is not even 
4 quantity cannot be a force.”—[Ibid. pp. 93, 4.] 
exalted topics, and shrinking from the rebuke of presumption. | 
ere Is an elegant experiment, in which the tension of a spring 
- . ; « 
successively appearing in all these various manifestations until it 
