C 142 ] 
Coroll. II. The Hair of Negroes becomes fhort, fliff, 
and frizzled, from the Exfrccation of its Subftance, 
and its excrementitious Moifture, by the Heat of the 
Sun s together with the Thicknefs and Denftty of 
the Pericranium, which hinders it to be further 
protruded. 
Coroll. III. Many morbid Difcolorations of the Body 
proceed rather from a preternatural Thicknefs and 
Deniity of the Membranes of the Skin, than from 
any Humours lodged in them, as is commonly 
fuppofed ; and may be accounted for in the fame 
manner, as the different Complexions in Time of 
Health. 
Coroll. IV. The Bodies of Whites are more perfpira- 
ble, than thofe of Negroes, but perfpire lefs in 
hot Weather, and more in cold. 
Coroll. V. White People are mod healthy in cold, 
and black or tawny People in hot Countries ; each 
being fubjcdt to Diforders, on a Removal to thefe 
refpeclive Climes. — The Caufes of the Difeafes 
of white People in hot Countries are often oppo- 
fitc and contrary to fuch as proceed merely from 
Heat, which exalts the Fluids, exficcates the Solids, 
and quickens the Circulation, occafioning fevere 
acute Difeafes; but the thin and rare Skins, and 
large Pores of white People, make them fubjedt to 
too large cutaneous Evacuations of the mod fub- 
til and adlive Fluids; by which the Body is in- 
fccblcd, and corncs to be in an imbibing Stare, 
both on its external and internal Surfaces ; and too 
readily imbibes the Humidity of the Air and Ali- 
ment, without a previous Digeftion ; caufing a cold 
and humid, rather than a hot and dry, State of the 
Body ; 
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