TRUE ANI] FALSE ANALOGIES. Q41 
other. This instance of analogy, which must come 
home to the comprehension of the most unpractised 
naturalist, may be cited as one of the innumerable proofs 
of the universality of symbolical representation; a prin- 
ciple which extends from the very highest groups of 
ponderable matter, down to the series in which in- 
dividual species follow one another. We know not, in 
fact, which to admire most, — the vast and unlimited 
extension of the principal itself, or the simplicity of 
those laws by which it is regulated. 
CHARS TE 
THE FOURTH PROPOSITION CONSIDERED. —THE PRIMARY TYPES 
OF NATURE. 
(297.) In the last chapter we endeavoured to elucidate 
the truth of the three first laws, upon which the 
System of Nature, or, in other words, natural classifica- 
tion, is framed. We now come to our fourth proposition, 
which maintains that the primary divisions of every cir- 
cular group are characterised by definite peculiarities of 
form, structure, and economy ; which, under diversified 
modifications, can be traced throughout the animal king- 
dom; and are, therefore, to be regarded as the PRIMARY 
TYPES OF NATURE. Upon this generalisation we have 
not been enabled to receive any assistance from the la- 
bours of our predecessors, since we are not aware of its 
having hitherto been hinted at. 
(298.) It would seem to follow, as the next stage of 
induction, after gaining the law of representation, that 
this representation necessarily involves the prevalence of 
certain definite forms, following each other in a uniform 
series, and, therefore, capable, from these circumstances, 
of a general definition. But, unfortunately, the few 
emineht naturalists who have prosecuted these higher 
objects of the science have limited their studies, for the 
R 
