^6 H^majlattcs', 
is not acquired by brisk Agitation and Motion 
in the Blood-veflels. 
II. But we have in the Mufde-pjell a 
sremarkable Inftance of the Eledricity of its 
Blood Globules : For if a Piece of one of the 
'Bronchia or Gills be cut off and put into a 
fmall concave Glafs with three or four Drops 
of its Liquor, and be then placed under a 
double Microfeope, the Blood may be feen 
greatly agitated in the fine Vefl'els ; and at the 
cut Edge of the Piece of Gill may with great 
Pleafure be feen, many Blood Globules repell- 
ed from the cut Orifices of the Blood-veflels, 
and attraded by other adjoining Veflels; alfo 
other Globules rolling round their Center, and 
repelling each other 5 whence it is plain that 
Bodies, by brisk rubbing and twirling about 
may acquire, in a watry Fluid, both attraftivc 
and repulfive Vertue or Eleftricity. If frcfii 
extravafated Blood be placed before a Micro- 
fcope, the Globules may be feen by mutual At- 
traftion to aggregate and form greater Globules. 
1 5. But tho’ it may be doubtful whether 
the Blood Globules, by reafon of the warm 
watry Fluid in which they float, do acquire an 
cleftrical Vertue or no, in pafling with greae 
Rapidity and flrong Friftion thro’ the innume- 
rable 
