192 PHILOSOPHICAL TRANSACTIONS. [aNNO 1758. 



This heat he experienced till the 12th, when he again went off to sea, where 

 he found the air very temperate, rather cool than warm ; and so continued till 

 the 14th. 



It may not be amiss further to observe on this head, that once in returning 

 from Edystone, having got within about 2 miles of the Ramhead, they were be- 

 calmed ; and here they rolled about for at least 4 hours ; and yet at the same 

 time saw vessels not above a league from them, going out of Plymouth Sound 

 with a fresh of wind, the direction of which was towards them, as they could 

 observe from the trim of their sails ; and as they themselves experienced, after 

 they got into it by tacking and rowing. 



Hence it appears, how different the temperature of the air may be in a small 

 distance; and to what small spaces squalls of wind are sometimes confined. 



LXII. Of the Earthquake felt in the Island of Sumatra, in the East Indies, in 

 Nw. and Dec. 1756. Jn a Letter from Mr. Perry, at Fort Marlborough, 

 Feb. 20, 1757. Communicated by the Rev. UWiam Stukeley, M. D., 

 F.R.S. p. 491. 



The earthquake at Lisbon was certainly one of the most awful and tremendous 

 calamities that has ever happened in the world. Its effects are extremely won- 

 derful and amazing ; and it seems to have been felt in all parts of the globe. 

 On the 3d day of the same month the earthquake of Lisbon happened, Mr. P. 

 himself felt at Manna * a violent shock ; and from that time to the 3d of De- 

 cember following he felt no less than 1 2 different shocks. Since which we have 

 had 2 very severe earthquakes, felt we believe throughout this island-f'. The 

 walls of :j: Cumberland-house were greatly damaged by them. Several houses, 

 the houses of Laye|| and Manna, were all cracked by them ; and the works at 

 the sugar-plantation ^ received considerable damage. The ground opened near 

 the qualloe^ at Bencoolen, and up the river in several places; from which 

 issued sulphureous earth, and great quantities of water, with a most intolerable 

 stench. Poblo Point** as much cracked at the same time; and some doo 

 soons-f"}- in-land at Manna were destroyed, and many people in them. 



• Manna lies about 50 nniles to the southward of Marlborough. — Orig. 

 + The island of Sumatra is between 7 and 8 hundred miles long, from north to south. — Orig. 

 t Cumberland house is a new well-built house for the governor of the place. — Orig. 

 11 Lave house or factory is about 30 miles to the northward of Marlborough, and Manna house or 

 fectory 50 miles to the southward, — Orig. 

 § The sugar plantation is 5 or 6 miles from Marlborough. — Orig. 

 % The qualloe is the country word for a river's mouth. — Orig. 

 •* Poblo Point lies about 3 leagues to the southward of Marlborough, — Orig. 

 •t+ Doosoons are villages. — Orig. 



