266 Mr. Hunter’s Ohfervatiom on the Species , See. 
fuppofition holds good in the Dog fpecies. It would appear, 
that the voice of the Wolf and the Jackal is very fimilar, and 
is principally conveyed through the nofe, and exa£Uy refembles 
that noile in Dogs, which is a mark of longing or melancholy, 
and alfo of fondnefs ; but has no refemblance to the bark of 
the Dog, which they do not perform. Barking is peculiar 
to certain varieties of the Dog kind, and even fome that do 
bark, do it lefs than others. The Dogs in the South-Sea 
iflands do not bark : our Greyhound barks but little ; while the 
MaftifF, and many of the fmaller tribe, as Spaniels, are parti- 
cularly noify in this way. It would appear as if the frequency 
of this noife arofe from imitation ; for the Dogs in the South- 
Seas learn to bark ; and others, as the Hound, have a peculiar 
howl, which, by huntfmen, is called the tongue. This noife, 
as alfo the bark, is made by opening the mouth. A variety in 
the voice, or fome parts of the voice, in the varieties of the 
fame fpecies, is not peculiar to the Dog. 
