[ 2 9 ° ] 
VI. Extra ft of a Memoir concerning the Com- 
munication of Electricity ; read at the pub- 
lic Meeting of the Royal Academy of Sci- 
ences at Paris, Nov . i 2. 1746. by Mon - 
feur le Monnier the younger , M.D. of that 
Academy, andF.R.S. communicated by the 
Author to the Prefident^ the Royal Society. 
Rtad'Dz c. 1 E Author of this Memoir propofes 
therein to examine thefe three Quefi^ 
tions 5 that is to fay, How is this ele&ric Virtue to 
be communicated to fuch Bodies as have it nor, and 
which are not capable of acquiring it by bare Fri&ion. 
only? How is the eledric Matter propagated? And, 
laftly, in what Proportion is it diftributed ? 
As to the firft, The Author obferves, that 
this eledric Virtue is no other Way to be com- 
municated, but by the near Approach of a Body 
already actually poirdTed of the fame: That the 
Rule laid down by Monfieur du Fay, That Bodies - 
never receive Electricity by Communication , unlefs 
they are Jiipported by Bodies eleftric in their own 
N*atnre> docs not always take Place, and that it is 
fubjeft to great Exceptions. For, firft, in the Ley- 
den Experiment, the Phial filled with Water is 
ftrongly cle&rificd by Communication, even when 
carried in the Hand, which is not a Body ele&ric by 
Nature. Secondly,, all Bodies that are eleftrified by 
means of a Phial of Water fitted to a Wire, and 
which 
