TheC ON TENTS. 
order to difcover whether or no the elec- 
trical Power , when the ConduBors thereof 
were not fupported by EleBrics per fe, would 
be fenftb'le at great Diflances , with an In- 
quiry concerning the refpeBive V docities of 
Electricity and Sound. "To which is added 
an Appendix , containing fome further In- 
quiries into the Nature and Properties of 
Electricity. p. 49 
2. Some further Inquiries into the Nature 
and Properties of EleCtricity. p. 93 
IV. A Letter from Mr . Francis Drake, Sur- 
geon , jF. R. S . to Martin Eolkes Efq, Pre- 
lident of the Royal Society, c fc. concerning 
the Bones of a Foetus being difch urged thro 
an Ulcer near the Navel. p. 121 
V. An Account of the Giants Caufeway in 
Ireland, in a Letter to the Prendent from 
the Rev. Richard Pococke, LL. D. Arch- 
, deacon of Dublin, and F. R. S. p. 124 
VI. A Letter from Maurice Johnfon Efq\ 
Prelident of the Gentlemens Society at 
Spalding, to James Jurin M. D. Fellow of 
the Royal College of Phyficians, London, 
and F. R. S. concerning a Metalline Ther- 
mometer, in the Mtrfeum of that Society. 
p. 1 2 8 
3 
