/ 



H 



U 



M 



A 



N 



5 



P 



E 



C 



I 



IS 



s. 



259 



the rcticida)' membrane \v[vcnt^\2X€iY lying under it, which is a white Causes 



or colourlefs, vifcous or flimy fubftance : whatever colour the fub- 

 iT:ance has which is immediately under the Epidermis, that colour 

 appears and becomes vifible to the eye. The blood fuddenly 



OF VARI 

 E T I E S , 



mounting into the blood veffels of the face, tinges the fame with a 



Vermillion blufh 



The blood being coloured by the extravafated 



bile, caufes the yellow colour of \\\q jaundice. The yellow lymph 



L 

 J 



depofited in the cutaneous vafcula, imparts the yellow tint of thofe 



/ 



F 



who in the Weft Indies are afEid:ed with the yellow fever. The 

 tattowing of the 0-Taheiteans, and gunpowder accidentally forced 



into the ikin, forms a black or blueiHi appearance. And in negroes, 



* 



the late ingenious Mr. Meckel^ difcovered the reticulum of Mai* 

 pighi to be black ; but the medullar fubftance of the brain, the pi- 

 neal gland, and the fpinal marrow, together with the .plexus nervi 



r 



opicif he found grey and blackifti. Others -f* have found the blood 

 of negroes to be deeper coloured than that of white people. 



\ 



Th 





ancients J knew that the fpermatic liquor of negroes is of a dark 



and th 



fervation is confirmed by modern 



In 



negi 



are tinged 



word, we find, that many of the fluids in 



darker, and fuch of their folids as are o^ a tender and delicat 



V 



LI2 



tex t u re> 



* Meckel in the Memoircs de TAcadenflc de Berlin, i-753» 

 f Towns in the Philos, Trans, on the blood of negroes. 

 % Herodotus Thalia, No. ci. 

 i! Le Cat Traite fur la couleur dela pcau* 



\ 



