CONTENTS. 
Let. X. An Account of the Agitation of the fVater 
at Rochford in Effex, Nov. i, 17 in a Letter 
from the Rev. Mr. Thomlinfon to the Rev. Dr, 
Sykes, D. D. Dean of Burien. Communicated 
by Tho. Birch, D. D. Secret. R. S. p. 3(54. 
Let. XI. From Mr. Richard Philips. Communicated 
by Lewis Crufius, D. D. F. R. S. In Berkfhire, 
near Reading. p. 36^. 
Let. XII. An Account of the fame. Communicated 
by the Rev. John Blair, LL. D. F. R. S. p. 367. 
Let. XIII. In Oxfordfhire, at Shirburn-Caftlc, the 
Seat of the Earl of Macclesfield, Fref. R. S. as 
appears by the following Account, communicated 
by his Son the Lord Ftfeount Parker, F. R. S. then 
upon the Spot. p, 368. 
Let. XIV. From John Huxham, M. D. F. R. S. to 
Mr. William Watfon, F. R. S. In Devonfhire 
and Cornwall 5 at Plymouth, Mounts-Bay, Pen- 
zance, ^c. p. 371.. 
Let. XV. From the Rev. W- Borlafe, A. M. F. R. S. 
to the Rev. Charles Lyttleton, LL.D. Dean of 
Exeter. p. 373. 
Extrall of Let. XVI. From Swanzey, datedDcz. 8, 
i7yy. Communicated by the Rev, ]ohn Blair, 
LL. D. F. R. S. p, 375>. 
ExtraLl of Let. XVII. From Mr. Wm. Ardcron, 
F. R. S. to Henry Baker, F. R. S. p. 380, 
Let. XVIII. To Mr. Wm. Arderon, F. R. S. from 
Mr. Tho. Barber in Yarmouth, concerning the 
Earthquake on '^ovzm. i. Communicated by Mr. 
Arderon. p. 380. 
Let. XIX. From the Rev. Mr. John Harrifbn, ReBor 
/^/’Hawkefiiead in Cumberland, to the Right Rev. 
Dr, Edm. Keene, Ld. Bifhop ^Chefter, p. 381. 
y F.xtraB 
