EVOLUTIONS OF ORGANIZATION. bi: 
and entirely to be explained by heredity. It is for 
them to say if this exactness in the choice of a 
name is an index of the accuracy of the reasoning 
on which their views are founded. Had they called 
themselves Demolitionists, on account of their dis- 
belief in morphological design, the name might 
possibly have been more expressive. 
Looking, however, at evolution in the natural 
sense of the word, we may find it useful to give a 
glance to some of the more notable opinions that 
have been held on the subject. 
In such a survey, however brief, the school of 
Schelling, as represented by Oken and Carus, must 
not be overlooked. Professor Hackel of Jena claims 
for Oken a foremost place in the pedigree of that 
system which he has himself put forward; and, 
undoubtedly, though there is little other affinity 
between Hiackelism and the doctrine which Oken 
published at the same University of Jena in his 
“Naturphilosophie” in 1810, than that both draw 
largely on the imagination, Oken’s is a theory of 
evolution embracing all Nature. It is built upon 
an a priori conception. It constantly declares that 
things must be after a certain fashion, simply be- 
cause the conception demands it ; and it is scarcely 
surprising that, proceeding by this method, not 
distinguishing between speculation and demonstra- 
