The CONTENT S. 
X. 'Tart of a Letter from Abbe Nollet, of 
the Royal Academy c?/* Sciences at Paris, 
and F. R . S. to M. Folkes Efq\ Prefident 
of the fame, concerning Electricity. 187 
XI. Several Effays towards difcovering the 
Laws of Electricity, communicated to the 
Royal Society by Mr . John Ellicott F.R.S. 
1 95 
1. A Letter to M. Folkes Efq\ Pr. R.S. 
ibid. 
2. An Effay towards difcovering the Laws 
of Electricity, addreffed to the Royal 
Society. - 203 
3. A Continuation of the foregoing Effay. 
213 
XII. A brief account of a Roman Teflera, by 
Mr. John Ward F. R. S. & Prof. Rhetor . 
Grefhamenf 224 
XIII. An Account of a learned Divine, who 
was born with two Tongues ; communicated 
to the Royal Society by Cr. Mortimer 
M.D . & Seer. R.S. 232 
XIV. Up on the Sounds <m/Hearing ^Fifhes, 
by J. T. Klein R. C P. XSed hiS'Secr* F.R.S. 
or Some Account of a Lreatife^ intit led . , “An 
“ Inquiry into the Reafons why the Au- 
“ thor of an Epiftle concerning the Hear- 
“ ing of Fifties endeavours to prove they 
“ are 
