32 
Of Hairs, 
Of Hairs. 
ROM Malphigi’s curious obfervations of the hab> 
X. we are informed, that they are compos’d of a num¬ 
ber of extreamly minute tubes, which are moft diftin- 
guifhable near the end of the hairs in a horfe’s main 
and tail, and in the briftles of a boar, wherein thofe 
tubes fa manifeftly appear, that he could fometimes 
reckon above twenty of them; and in the hedge-hog’s 
prickles, he plainly law thofe tubes, together with me¬ 
dullary valves and cells. 
That which this fagacious and not enough to be 
commended obferver, took notice of in the ftru&ure of 
hair, and its parity to the fpines, u is obfervably true 
in fome meafure in the hairs of cats, rats, mice, and 
in divers other animals, which look very prettily when 
viewed with a good microfcope. 
Fig. 63. A, B, C, reprefents three cylindrical pieces 
of human hairs ; they are tranfparent throughout their 
. whole x length $ and are compofed of fmall long tubular 
fibres, encompaffed with a kind of bark j from which 
ttru&ure, the ends of long hairs when fplit, appear 
like a ftick ihrivelled with beating, fome of them in 
men, horfes, Iheep, hogs, &c« having fix or more fplin- 
ters. 
Fig. 64. reprefents a cylindrical piece of the hair, or 
brittle of an hog, which is neither perfectly round nor 
fharp edged, but prifmatical, with divers fides and roundifil 
angles. 
Part of a whifker of a cat cut tranfverfly, is re- 
prefented by the fhort cylinder, fig. 65. which feem- 
« Derham’s Phif. Thef. p. 220. * Hook’s Microgra. ift 
Ed. p. 158. 
