Of Hairs. 
33 
ed to have a large pith in the middle, like that of 
elder. 
The hairs of Indian deer appear perforated from fide 
to fide. The long hairs of horfes as at D E F, fig. 
66. feem cylindrical, and fomewhat pithy. 
The hair of a moufe feems to be one (Ingle tranfpa- 
rent tube, with a pith, made up of a fibrous fubfbmce, 
running in dark lines, in fome hairs tranfverfly, in others 
fpirally; thefe darker medullary * parts are no other than 
fmall fibres convolved round; and lying clofer together 
than other parts of the hair; they run from the bottom 
to the top of the hair, and it is apprehended that they 
run round in a fcrew-like fafhion. A B, fig. 67. re~ 
prefents that part of the hair which grew near the (kin, 
the middle part of the fame hair is (hewn at C D, and 
the point of it at E F. 
Hairs taken from the head, the eye-brows, the nof- 
trils the beard, the hand, and other parts of the body, 
appear unlike, as well in the roots as in .the hairs 
themfelves, and vary as plants do of the fame genius, 
but of different fpecies. 
Hairs have each a round bulbous root, which lies 
pretty deep in the fkin, being planted in the pyramidal 
papillae, and by this imbibe their proper food from the 
adjacent humours, and, as hinted above, their extremi¬ 
ties fplit or divide in two or three branches, efpecially 
when kept dry, and left to grow too long; fo that what 
to the naked eye appears only a fingle hair, to the mi- 
crofcope feems a brufh. 
y Arc. Nat. Tom. iii. p. 47. 
D 
Of 
