464 PHILOSOPHICAL TRANSACTIONS. [aNNO 1731. 



than of late years, and never to so great a degree as the present instance : nor 

 indeed is there any recorded in the Phil. Trans, that seems to equal it; except- 

 ing only that celebrated one of the 6th of March, 17 16, observed by Dr. Halley, 

 and in many respects that also must yield to this. 



The aurora continued till day-light. The day preceding this meteor was very 

 warm for the season, though early in the morning there was a very considerable 

 hoar-frost. The morning following was remarkable for an abundant dew. The 

 temper of the air much the same as the preceding day. About 8 o'clock the 

 heavens fair and calm. Barom. 30. 1. Therm, -rrnr- 



Mr. Greenwood compared his observations with what he could find relating 

 to the aurora borealis in the Phil. Trans. &c. and thinks that few particulars 

 are mentioned there, but what occurred in this wonderful instance ; some rare 

 ones confirmed, and a few altogether new. He relates the circumstances 

 very minutely, and at considerable length ; but after so many descriptions in 

 former papers, it is not necessary to be more particular. 



j4n Account of the same Aurora Borealis, as seen at Annapolis in Maryland. 

 - By Mr. Richard Lewis. Communicated in a Letter to Mr. Peter Collinson, 

 F.R.S. N°418, p. 69. 



We were entertained with a phenomenon on the 22d of October last ; which, 

 as it was never observed before in this quarter, was very surprising to most 

 people. 



About 6 at night the north part of the hemisphere appeared of a faint red, 

 the horizon was very dusky, and this redness was bounded above by a very dark 

 cloud. 



As the night advanced, this meteor reddened, till it was of as deep a colour 

 as blood ; and it spread itself to the north east. It continued all night, but 

 about 1 in the morning, it sent forth two or three streams from its north part, 

 of a whitish colour, which shot up to the zenith. These emanations looked 

 much like the rays of the sun, when they pass through a dark cloud, when it 

 is said to be drawing water. It was taken to be an aurora borealis, but it ap- 

 peared much fainter than those seen in England. 



