J. D. Whelpley on Philosophical Analogy. 331 
of the universe ; material, organic, and spiritual; such as may 
satisfy the aspiration of Reason to understand the wisdom of the 
Creator in his work. Each department aims to perfect some one 
cosmical idea; as, in geology, of the order of the creation; in 
meteorology, of the system of the atmosphere and its changes ; 
in astronomy, of the movements of the isolated spheres of matter, 
in free space ; in zoology, of the system of living animals; 
ee of the natural history and distribution of the i 
man r. 
In ach department of cosmology, a knowledge of all the meth- 
ods of observation is required ; nor are these less necessary to be 
known to those who give their chief attention to the seience of 
the human mind itself, which, as the crowning work, includes 
and presupposes all the others. 
Of Inductive Science, the divisions, in all of which the four 
forms of observation are employed, are at least three in number, 
to wit, 
1. The science of ee inorganic, nature, of which the Sur 
divisions have. been 
2. Organology, ram science of organized bodies, divided into, 
(a.) The study of the forms,—as by the method of Linneus. 
(6.) The study of the changes and motions,—or of Natural 
History proper. 
sol ao study of organized substances, in their interior con- 
stitut 
d.). "The study of the secret powers of life, (analogous with 
electricity and magnetism. 
8. Psychology, “the sciences of Instinct, Passion, Intelligence, 
and the Rational Ener. 
(a.) In the eteiiaga or aciighieieiy inspired by Instinct, Intelli- 
gence, &e. 
(b) In the habits and motions, prompted by Instinct, Intelli- 
ce, &e. 
(c. ) In the peculiar specific Energies of the same,—as of love, 
fear, appetite, aversion, d&c. 
(d.) In the play of these Energies, the direction and combina- 
ok of them, in the Instinctive and Intelligent life of the anima- 
ted bein 
2 have. endeavored to present these divisions with some de- 
Stee of accuracy, in order to illustrate in a more complete and 
satisfactory ensienb the method of induction which it is my de- 
Sire in this letter to establish, not only as the best, but also as 
the only practical and available method, for the advancement of 
Science. For it can be shown, that in each of the four depart- 
ments of observation, in the three great emg of Psychology, 
logy and Hylol i. e., of the spirit, the organism, and 
the tter,) the eeoeied of reaso reasoning. pay good through- 
Sxconp Serres, Vol. V, No. 15.—May, 1848. 
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