98 PHILOSOPHICAL TRANSACTIONS. [aNNO 1736. 



earthquake felt on Oct. 25, about 4- before 4 in the morning, which lasted by 

 fits some few seconds, about -j- of a minute, or while one might deliberately 

 count to 20: for most of the accounts concur in this particular, that the chairs, 

 wainscot, doors, chests of drawers, and other moveables, were heard rattling ; 

 and one, that a bell rung of itself just before they felt the heaving of their 

 beds ; and that there was no wind stirring at that time, but that it rained, and 

 the wind rose soon after. 



Of a Shock of an Earthquake felt in Northamptonshire, in October 1731. 

 By the Rev. Jos. Wasse. N° 444, p. 367. 1 



About 4 in the morning, Oct. 10, 1731, the Rev. Mr. Jos. Wasse, rector 

 of Aynho in Northamptonshire, says, that his windows rattled, as if some- 

 body had been dancing over-head. The concussion lasted about 1 minute ; 

 others thought it lasted about 2 minutes. It alarmed the neighbouring vil- 

 lages, Bloxham, 4 miles south-west from Anyho; Barford, b ; Banbury, 4 

 west; Adderbury, 1 mile west ; Crowton, 1 mile to the east; and Charlton, 

 as much to the north. There was no notice of its progress south or south- 

 east. About 1 minute after, some of the town of Aynho saw a great flash 

 of lightning. In the morning the sky looked of a land-colour. It was said 

 that there was a former shock felt upon Oct. 8, about 3 in the morning; and 

 that the latter was preceded by a noise like distant thunder. 



It is remarkable, that this shock was perceived to extend more from east to 

 west, than from north to south ; which particular was likewise observed in the 

 last shock felt in Sussex 1734. 



Experiments on Quicksilver. By Dr. Boerhaave, Part III. N° 444, p. 368. 



From the Latin, 



The substance of this paper has been incorporated with Part II. inserted 

 at p. 93, of this vol. of the Abridgments. 



Concerning an Improvement of the Diving Bell. By Mr. Martin Triewald, 

 F. R. S. Captain of Mechanics, and Military Architect to his Swedish Majesty. 

 N" 444, p. 377. 



Mr. Triewald having made trials with the diving bell and air barrels in several 

 depths, on the coast of the Baltic, according to the ingenious improvement of 

 Dr. Halley, made in the year 17 16, but with some small additions; he found 

 by experience, that no invention founded on any other principles than those of 



