nist believes these three Rhinoceroses were created{176}
with their deceptive appearance of true, not <illegible> relationship;
as well can I believe the planets revolve in their present courses not
from one law of gravity but from distinct volition of Creator.

{176} The original sentence is here broken up by the insertion
of:--"out of the dust of Java, Sumatra, these <?> allied to past
and present age and <illegible>, with the stamp of inutility in
some of their organs and conversion in others."

If real species, sterile one with another, differently adapted, now
inhabiting different countries, with different structures and instincts,
are admitted to have common descent, we can only legitimately stop where
our facts stop. Look how far in some case a chain of species will lead
us. <This probably refers to the Crustacea, where the two ends of the
series have "hardly a character in common." _Origin_, Ed. i. p. 419.>
May we not jump (considering how much extermination, and how imperfect
geological records) from one sub-genus to another sub-genus. Can genera
restrain us; many of the same arguments, which made us give up species,
inexorably demand genera and families and orders to fall, and classes
tottering. We ought to stop only when clear unity of type, independent
of use and adaptation, ceases.

Be it remembered no naturalist pretends to give test from external
characters of species; in many genera the distinction is quite
arbitrary{177}. But there remains one other way of comparing species
with races; it is to compare the effects of crossing them. Would it not
be wonderful, if the union of two organisms, produced by two separate
acts of Creation, blended their characters together when crossed
according to the same rules, as two races which have undoubtedly
descended from same parent stock; yet this can be shown to be the case.
For sterility, though a usual <?>, is not an invariable concomitant, it
varies much in degree and has been shown to be probably dependent on
causes closely analogous with those which make domesticated organisms
sterile. Independent of sterility there is no difference between
mongrels and hybrids, as can be shown in a long series of facts. It is
strikingly seen in cases of instincts, when the minds of the two species
or races become blended together{178}. In both cases if the half-breed
be crossed with either parent for a few generations, all traces of the
one parent form is