CONTENTS. 
"XL VIII. Obfervationes Eclipfium Satellitum fovis 
XJlifiipone habit# a Joanne Chevalier, Prefbytero 
Congregationis Oratorii, Regiceque Londinenfis So- 
cietatis Socio , Anno 1 757. p. 378. 
XLIX. A remarkable Cafe of the Efficacy of the 
Bark in a Mortification : In a Letter to William 
W atfon, M. D. F. R. S. from Mr, Richard Grind- 
all, Surgeon to the London HoJpitaL p. 379. 
L. A Letter to the Rev. TTho. Birch, D. D. Secrete 
R.S. from John Pringle, M.D. F.R.S. inclofing 
Two Papers communicated to him by Robert Why tt, 
M. D. F. R. S. p. 383 . 
1. Some Obfervations on the lithontriptic Virtue of 
the Carlihad Water s y Lime-water , and Soap : 
In Letter to Dr. John Pringle, F. R. S. from 
Dr. Robert Whytt, F. R. S. and Prof e for of 
Medicine in the Univerfity o/Edinburgh. p. 3 86.. 
2. An Infiance of the Eledlrical Virtue in the Cure 
cf a Palfy. By Mr. Patrick Brydone. p. 392. 
LI. An Account of forne fojjil Fruits , and other Bo- 
dies , found in the IJland of Shepey. By James 
Parfons, M. D. F. R. S. p. 396. 
LII. Obfervations on the Comet , that appeared in the 
Months of September and O&ober 1757, made at 
the Royal Obfervatory by Ja. Bradley, D.D. Afire - 
nomer Royal , F.R.S. and Member of the Royal 
Academy of Sciences at Paris. p. 408. 
LIII. The Refolution of a General Proportion for de- 
termining the horary Alteration of the Pofition of 
the Terreftrial Equator , from the At t radii on of 
Sun and Moon : With forne Remarks on the Solu- 
tions given by other Authors to that difficult and 
important Problem .. By Mr. Tho. Simpfon, P.R.S. 
p. 416. 
LIV. 
