CONTENTS. 
LXl. An Account of the Fkcenomena of Eicflricity 
in vacuo, with fome Obfervations thereupon. 
By Mr.- Wm. Watfon, F. R. S. p. 362, 
IXH. A Letter from Dr. Bevis to Dr. Dc Caftro, 
F. R. S. containing Extra&s of Father Auguftin 
HallcrfteinV aftronomical Obfervations made at 
Pekin in 1744. and 1747. p. 376. 
LXlIl. Extracts of fever al Letters of Mordach. 
Mackenzie, M. D. concerning the Plague at 
Conftantinople, p. 384. 
LX IV. A Catalogue of the Fifty Plants from Chelfea 
Garden, prefented to the Royal Society by the 
JVorfhipful Company of Apothecaries for the Tear 
175-1. purfuant to the Direction of Sir Hans 
Sloane, Bart. Med. Reg. & Soc. Reg. nuper 
Frrefes. By John Wilmer, M. D. clariffim. 
Societat. Fharmaceut. Londinenf. Soc. Hurt. 
Chelf. Briefest. & Fraleht. Botan. p. 396. 
LXV. An Account of Dr. BianchiniV Recueil d'ex- 
periences faites a Venife fur le medicine eleftri- 
que. By Mr. William Watfon, F.R. S. p. 399. 
LXVI. The Cafe of the Operation of the Empyema, 
fuccefs fully performed by Mr. jofeph Warner, 
F. R. S. and Surgeon to Guw Hofpital. p. 407. 
LX VII. An Account of the Eruption of Mount Ve- 
fuvius in Oft. 1 7 5- 1 . in a Letter to Sir Matthew 
Fetherfton-Haugh, Bart. F. R. S. written at 
Naples Jan. if. 175-2. A 7 . S. p. 409. 
LXVI 1 I. An Account of an Hydrophoby. By Tho- 
mas Wilbraham, LL.D. F. R. S. p. 412. 
LXIX. A Letter from Mr. J. Smeaton to A/r.John 
Ellicotr, F. R. S. concerning fome Improvements 
made by himfelfin the Air-Pump, p. 41 y. 
b 2 LXX 
