[ 1 '4 ] 
their final Termination in the outer Lamella of the 
Epidermis , is laid over the open Orifices of thefe 
VefTels, at their final Terminations, to keep off the 
Injuries they might be expofed to, by an immediate 
Contact with the open Air, either in obftru&ing their 
Orifices, exficcating their Subflance, or exhaling their 
liquid Contents too faff, if deprived of fuch a Cover, 
from hence it will appear, how far the Epidermis 
may be laid to be vafcular or not ; and that it is very 
probable, that this outer Coverlet or external La- 
mella of it, is a folid nervous Expanlion, enjoying 
no Sort of VefTels, any more than the ultimate Fi~ 
brilU of the Nerves themfelves can be fuppofed 
to do. 
Proposition IV. 
The Colour of Negroes does not proceed from any 
black Humour , or fluid Farts contained in their 
Skins 5 for there is none fuch in any Fart of their 
Bodies , more than in white People. 
It has been the general received Opinion, fince 
Malpighi's Time, that the Caufe of the Colour of 
Negroes is a Juice or Fluid of a black Colour, which 
lies between the Epidermis and Cutis , in fome 
aqueous VefTels, which ferve to lubricate thofe Parts 5 
which Opinion I would be willing to fubmit to, as 
others feem to have done, as far as the bed Autho- 
thority ought to go ; but Malpighi Teems to pro- 
poTe this, rather as a probable Opinion to be more 
thoroughly examined, than as an eftablifhed one to 
be confided in ; as would appear from his own Words, 
Ex quo tranfeunter deduco baud incongruam forte 
Nigredinis 
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