CONTENTS. 
make at St. Helena a Series of Obfervations for dif- 
covering the Parallax of the Moon . p. 2 1 
VI. A Letter from the Rev. Nevil Mafkelyne, M. A. 
F. R. S. to William Watfon, M. D. F. R. S. p. 26 
VII. A Differtation upon a Samnite Denarius , never 
before publifhed: In a Letter to the Rev. Thomas 
Birch, D. D. Secretary to the Royal Society , from 
the Rev. John Swinton, B. D. of Chrift-Church, 
Oxon, F. R. S. p. 28 
VIII. An Account of an Eruption of Mount Vefuvius 
In a Letter to Philip Carteret Webb, Efq ; F. R. S. 
from Sir Francis Hafkins Eyles Stiles, Bart. 
F. R. Si. P -39 
IX. Another Account, of the fame Eruption of Mount 
Vefuvius : In a Letter to Daniel Wray, Efq- y 
F. R. S. from Sir Francis Hafkins Eyles Stiles, 
Bart. F. R. S. P-4 1 
X. ExtraCl of a Letter from Mr. Robert Mackinlay, 
to the Right Honourable the Earl <?/'Morton, F. R. S. 
dated at Rome, the gth January 1761, concerning 
the late Eruption of Mount Vefuvius, and the Difcovery 
of an ant ie nt Statue cf Venus at Rome. P- 44 - 
XI. A Letter to the Rev. Dr. William Brakenridge, 
ReCtor of St. Michael Baffifhaw, London, and 
F. R. S. concerning the Perm and Period of Human 
Life : In which the Inequalities in conftruCting , and 
the falfe Ccnclufons drawn from Dr. Halley ’5 Breflau 
Fable are fully proved ; the Juppofed extraordhiary 
Healthfidnefs of that Place is particularly examined , 
and co?ifuted ; and its real State equalled by divers 
Places in England ; the Imperfection of all the Fables 
formed upon iooq Lives is Jhewn , and a Method 
propofed 
