The CONTENTS. 
Explofion in the Air, heard at Norwich, 
June 7. 1 750. p. 698 
XLV. An Account of Part of a Roof of a Pot- 
houfe at Lambeth being flung down by thi 
Earthquake, March 8. 1 749-50. p. 700 
XLVI. Extratf of a Letter from Dr. Mac- 
kenzie to Dr. Mead F. R. S. concerning 
Earthquakes at Smyrna. ibid. 
XLVII. Part of a Letter from Wm. Folkes, 
Ffq\ F. R. S. to his Brother the Pref. con- 
cerning a Shock of a?i Earthquake felt at 
Newton in Northamptonshire, on Sunday, 
September 30. J750. p. 70 r 
XLVII i. Part of a Letter from J. Burrow, 
Ffq\ F. R.S. to the Prefident, concerning an 
Earthquake felt itear Bury St. Edmund’s 
in Suffolk, and another at Narborough in 
LeicefterShire, on the 30 th of September, 
1750. p.' 702 
XLIX. A Letter fro?n the Rev. Mr. J. Nixon, 
F. R. S. to Mr. John Ward, F. R. S. and 
Rhet. Prof. GreSham. ferving to accompany 
two Letters ; one from Sir Thomas Cave, 
Bart, and another from the Minijler of 
Wefton with Sutton in Northamptonshire; 
concerning the Earthquake on Sept. 30. 
1750. p. 705 
L, 
