244 Notice of Dr. Hooker’s Flora of New Zealand. 
that each began with a single pair? We would still maintain 
that the objective idea of species arises from this “ perennial 
succession of like individuals (to use the phrase of Linneus), 
sustaining to each other the relation of parent and progeny ; and 
we think that the evidence on that side of the question strongly 
favors the inference, that plants, at least, have been distributed 
each species from a single and specific primordial area: but we 
know not what scientific evidence makes it needful to maintain 
the doctrine of the single creation of species in the restricted form 
of a single initial individual or pair. Were we even to go so lat 
as explicitly to assume the likelihood, in certain cases, of the 
original creation of- numerous individuals of a species, all alike 
“ Arguments in favor of these views are not wanting, derived both 
from the animal and vegetable kingdoms; the chief of which are 
drawn from a large class of well established facts, upon the bear! 
of which the most distinguished and candid naturalists are divided a 
opinion: such are—the great number of genera whose species ® a 
with which breeds of certain plants and animals may be propa 
omparative certainty with which some few varieties are ae or 
duced under favorable circumstances,—the great facility with W 
sports,—and the difficulty of accounting for the existence of plants ® 
localit 
animals in two or more ities, between which they cannot have bee? 
4 . 
