328. = SJ. D. Whelpley on Philosophical Analogy. 
Arr. XXXIV.—Second Letter on Philosophical Analogy ; by 
James D. Wuetrtey. (Addressed to one of the Editors of 
this Journal. ) 
* * * In my last letter,* I attempted to express what seem- 
ed to me the true distinction between the hypothetical and the 
truly scientific method of reasoning. This method was named, 
for convenience, “Induction by Analogy,” or, Analogical Induc- 
tion,—a method of reasoning from the known to the unknown 
in nature. 
It is usual with men of science to say, that no theory can be 
admitted as true until it has been fully tested by experience ; and 
. 
ination, without ever finding the true one. And if we ask our- 
of gold. ' 
In a similar manner, when we are familiar with all the external 
properties of a man, and have a perfect observation of him, as 
a moving object,—when all his features, forces, and habits, are 
sensibly impressed upon us,—we conceive of him not as a mere 
ee of these, but as an individual, a unity, so com 
. 
. . . . . . ? 
invisible, and spiritual, qualities, concentered, biended, and co- 
* See Letter on Philosophical Induction. American Journal of Science for Jan. 
1348, p. 33. 
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