232 on varieties of domestic animals, — Oct. 16. 
ture to say more work, in a day, than a lubberly 
London carter with his huge waggon and three hors= 
es like elephants, can do; as could be easily demon- 
strated were it not for taking up too much of your 
room. 
It is by thus comparing the practice of the people 
in one part of the country, with that of another, 
in things that are common to both, that the mind of 
a sensible man is enlarged by travelling ; and in 
this way it may prove useful even to 
Edinburgh dug. 1793. A City TRAVELLER, 
\ 
THOUGHTS ON WHAT IS CALLED VARIETIES, OR DIFa= 
FERENT BREEDS OF DOMESTIC ANIMALS, SUGGEST- 
ED BY READING DR PALLAS’s ACCOUNT OF RUSSIAN 
SHEEP. 
Continued from p. 161. 
"Turse observations may tend to explain in some 
measure the cause of a fact that has been often noted, 
but never, that I know of, accounted for; viz. that 
animals in a wild state, preserve in general, a great 
uniformity of cclour, and are little ~diversified in 
appearance, whereas among domesticated animals, a 
much greater variety is observable in the colour and 
appearance of the individuals of the same kind. 
This phenomenon I think may be thus explained . 
when an individual of an uncommon colour or ‘p. 
pearance chances to be produced, especially for the 
first time, among a race of domestic animals, which 
before that period were generally uniform, it would 
