CONTENTS. 
I XXXIX. A Differ tat ion upon a Parthian Coin , 
with Characters on the Reverfe refembling thofe 
of the Palmyrenes. In a Letter from the Rev. 
John Swinton, M. A . of Chrift-Church, Oxon. 
F. R. S. to the Rev. Thomas Birch, D. D. 
Secret. R. S. p. 
XC. A Catalogue of the Fifty Plants from Chelfea 
Garden, preferred to the lloyal Society, by the 
worfhipful Company of Apothecaries, for the Tear 
17 ff, purfuant to the 'Direction of Sir Hans 
Sloanc, Baronet , Med. Reg. f? Soc. Reg. mtper 
Brcefes, by John Wilmer, M. D. clarijf. Socie- 
tatis c Pharmaceut. Lond. Socius, Hort. Chelf. 
Prrefecius & PueleCtor Botan. p. 607. 
XCI. ExtraCl of a Letter from Dr. Vitaliano Do- 
nati, Profefor of Botany at Turin, to Mr. Abra- 
ham Trc mblcy, F. R. S. concerning the Earth- 
quakes felt at Turin, December 5?, 1 757, and 
March 8, 1 776. Tranfated from the Italian. 
p. 612. 
XCI I. An Account of a continued Succeffion of 
Earthquake at Briguc in Valais. Written by 
the ReCtor of the College of Jefuits at Brigue, 
and addrefed to Monf. ]alabcrt, Profefor ofPhi- 
lofophy and Mathematics at Geneva, and F. R. S. 
and communicated by Mr. Abraham Trembley, 
F. R. S. Tranfated from the Latin. p. 61 6. 
XC1II. Extract of a Letter of Monf la Conda- 
rnine, F. R. S. to Dr. Maty, F. R. S. tranfated 
from the French. p. 622. 
XCIV. Obfervations upon the Currents of the Sea , 
at the Amides of America : By Dr. Peyflonncl, 
F. R . S. p. 624. 
xcv. 
