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Boyle, Robert, 1627-1691

"Experiments and Considerations Touching Colours (1664)"


And within some few Lines after: _It is not very Difficult to find the
Cause of this Change, which certainly proceeds only from the Outward Cold,
since I know that even in Summer, Hares will change Colour, if they be kept
a competent time in a Cellar_; I say, were it not for Some Scruple, because
I take notice, that in the same Page the Author Affirms, that the like
change of Colour that happens to Hares in some Provinces of _Muscovy_,
happens to them also in _Livonia_, and yet immediately subjoyns, that in
_Curland_ the Hares vary not their Colour in Winter, though these two last
named Countries be contiguous, (that is) sever'd only by the River of
_Dugna_; For it is scarce conceivable how Cold alone should have, in
Countries so near, so strangely differing an operation, though no less
strange a thing is confess'd by many, that ascribe the Complexion of
_Negroes_ to the Heat of the Sun, when they would have the River of
_Cenega_ so to bound the _Moors_, that though on the North-side they are
but Tawny, on the other side they are Black.
[10] Olearius Voyage de Mosco. et de Perse _liv_. 3.
There is another Opinion concerning the Complexion of _Negroes_, that is
not only embrac'd by many of the more Vulgar Writers, but likewise by that
ingenious Traveller Mr.


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