[ 10 7 3 
Leprofyi a remarkable Inftance of which Dr. Turner 
affords us {a) : Altho’ it cannot be denied, but that 
the Cuticle may refleft forne fmall Portion of the 
Rays of Light ; which, however, Teem to have but 
little Share in occafioning the Colour of the Body, 
to what thofe Colours have, which are tranfmitted 
thro' it, from the other lefs diaphanous Membranes 
under it. 
Proposition II. 
The Skins of Negroes are of a thicker Subfiance , and 
denfer Texture , than thofe of white Teople } and 
tranfmit no Colour thro ’ them. 
For the Truth of the firft Part of this Propofition* 
we need only appeal to our Senfes, and examine the 
Skins of Negroes when feparated from the Body ; 
when not only the Cutis r but even the Epidermis , 
will appear to be much thicker and tougher, cateris 
paribus , than in white People. But, becaufe the 
Subftance and Texture, efpecially of the Epidermis^ 
is not a little alter'd in anatomical Preparations, and 
that in fuch a Meafure as to alter the Texture per- 
haps, on which the Colour depends, by Boiling, 
Soaking, Peeling, <&c. let us examine the Skins of 
Negroes on their Body ; where they will appear, from 
the following Confiderations, to have all the Proper- 
ties affigned : i. In Bleeding, or otherwife Cutting 
their Skins, they feel more tough and thick, than 
in white People. 2. When the Epidermis is fepa- 
(<j) J)e Morb. Cutav, p. m. IV. 
rated 
