The CONTENTS. 
Prref. by John Wilrner, M. D. Clariff. Societat. 
Pharmaceut. Lond. Soc. Hort. Chelfean. Prrefefr. 
et Praeled. Botan. p. 
XVIII. An Account of a furprifing Inundation in 
the Valley of Sr John's near Kefxvick in Cumber- 
land, on the 2 2d Day of Auguft 1749, in a 
Letter from a young Clergyman to his Friend ; 
communicated by John Lock, Efcp, F. R. S. p.362. 
XIX. An Account of an extraordinary Fire-ball 
bitrfting at Sea, communicated by Mr. Chalmers. 
p- $66. 
XX. Extrait of a Letter from the Abbe Nollet, 
F. R. S. &c. to Charles Duke of Richmond, 
F. R. S. accompanying an Examination of certain 
Phenomena in Eleftricity, publijhed in Italy; by 
the fame, and tranfated from the French by Mr. 
Watfon, F. R. S. p. 3 < 5 S 
XXI. An extraordinary Cafe of a Fraclure of the 
Arm ; communicated by Mr. John Freke, F. R. S. 
Surgeon to Sr. Bartholomew’s Hofpital. p. 397. 
XXII. A further Account of the Libellas or May- 
Flies, from Mr. John Bartram <?/Penfyl vania; com- 
municated by Mr. Peter Collinfon, F. R. S. p. 400. 
I. Remarks 
