DOG. 
m2 
of the hair ; in short, different in every thing but 
that make of the parts which serve to continue 
the species, and keep the animal distinct from ail 
others. It is this peculiar conformation, this 
power of producing an animal that can reproduce, 
that marks the kind, and approximates forms 
that at first sight seem never made for conjunc- 
tion. 
From this single consideration, therefore, we 
may at once pronounce all dogs to be of one kind ; 
but which of them is the original of all the rest, 
which of them is the savage dog, from whence 
such a variety of descendants have come tlown, 
is no easy matter to determine. We may easily, 
indeed, observe, that all those animals which 
are under the influence of man/ are subject to 
great variations. Such as have been sufficiently 
independent, so as to choose their own climate, 
their own nourishment, and to pursue their own 
habitudes, preserve the original marks of nature, 
without much deviation ; and it is probable, that 
the first of these is even at this day very well 
represented in their decendants. But such as 
man has subdued, transported from one climate to 
another, controlled in their manner of living, and 
their food, have most probably been changed also 
in their forms ; particularly the dog has felt 
these alterations more strongly than any other of 
the domestic kinds ; for living more like man, he 
may be thus said to live more irregularly also, 
and, consequently, must have felt all those changes 
that such variety w ould naturally produce. Some 
other causes also may be assigned for this variety 
in the species of the dog ; as he is perpetually 
under the eye of his master, when accident has 
produced any singularity in its productions, man 
uses all his art to continue this peculiarity un- 
changed ; either by breeding from such as ha$ 
