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artratt with the greateft Force, when approximated. 
Again, when united, they fly afund.cr with the 
greattft Celerity. All this according to the Laws 
preferibed by the Sovereign Architect. This is 
the Life and Soul of Aclion, and Reaction, in the 
Univerfe. Thus has the Great Author provided 
againft the native Sluggifhnefs of Matter! Light, or 
Fire, in Animals, is what we cail the animal Spirits 5 
and is the Author of Life and Motion. But we know 
not the immediate Mode of mufcular Motion, any 
more than how, in inanimate Matter, it caules the 
Vibrations of an Earthquake.. 
Of this Fire the excellent A lanilius thus writes, 
who lived in the Time of Auguftus , Ajlronom. I. 
Sunt autem cunffiis permifti partibus ignes , 
Qui gravidas habitant f abric antes fulmina nub ex, 
Et penetrant terras , <zyEtnamque imitanlur 
Olympo , 
Et calidas reddunt ipfis in fontibns itndas , 
Ac filice in duro> viridique in cortice , Jedem 
Inveniunt j cum ftlva fibi collifa crematur. 
Jgnibus ujque adeo natura eft omnis abundans l 
Which may thus be englifhed ; 
Fire, univerfal Nature traverfes ; 
It makes the Thunderbolt in tumid Clouds > 
In dire Volcano s penetrates the Earth ; 
And fends the boiling Water from its Springs : 
In hardeft Flint, and fofteft Wood, it dwells * 
Which, by Collifion, fhews itfelf in Flame. 
With Fire fo pregnant is all Nature found 1 
jC 2 
