[** 3 
tiie lame time, provided the Perfons employ’d hold 
their Hands fumcientty heady. 
§ XXII. This Experiment exhibits new and un- 
expected ‘Phenomena,: In all the Experiments to kin- 
dle inflammable Subftances by Electricity hitherto 
attempted both here and abroad, either the Spirit 
or the Non-eleCtric, wherewith it was intended to 
be fet on Fire, were placed upon Originally-EleCtrics. 
But here, on the contrary, although both one and 
the other are placed upon Non-eleCtrics, we fee the 
fame EffcCt produced. Nor is the eleCtrical Power 
leffencd, by exciting fevcral different Quantities of 
Flame i in doing which, it paffes fo quick as to pre- 
vent the Poflfibility, in feveral Spoonfuls of Spirit, 
fired by the fame Operation, of determining which 
of them was on Fire firft : And though we know 
from its EfFeCts, that the EleCIricity goes through 
the whole Circuit of Non- eleCtrics with its whole 
Vigour, its Progrefs is fo quick as not to affeCt, by 
by attracting or otherwife, light Subftances difpofed 
very near the Non-eleCtrics, through which it muft 
neceflarily pafs. 
§ XXIII. I would here recommend to thofe Gen- 
tlemen of the Royal Society , who laft Summer mea- 
fured the rdpcctive Velocities of Electricity and 
Sound, a Procefs of this fort to be executed at a 
proper Time; whereby they would be able to a 
very great Nicety to afeertain the abfolute Velocity 
of Electricity. For it may be contrived, that a Man- 
may be placed in the fame Room with the electrifying 
Machine, taking hold of a Wire in each of his Hands : 
Thefe 
