596 PHILOSOPHICAL TRANSACTIONS. [aNNO J 748. 



suspects it began a little sooner, another having taken the telescope out of his 

 hand; for when he looked, the moon was a little advanced on the disc of the 

 sun about 30° from the zenith of the sun towards the west. 



The eastern cusp in the zenith of the sun at gh g"* l o^ 



Eastern limb of the moon reached the centre of the sun at . . 9 39 o 



The annulus began about 30° from the zenith of the sun west- 

 ward at 10 20 O 



The annulus appeared most perfect at 10 22 45 



Though, as nearly as he could discern, he thought it a little narrower on the 

 south-west limb of the sun, than it was on the opposite side. From hence it 

 should appear, that the centre of the eclipse was to the southward of Elgin. 



The annulus was observed to break on the south-east limb of the sun, about 

 30° from the Nadir, at lO*' 25"' 30\ 



Before the joining of the cusps of the sun, as also at the breaking of the an- 

 nulus, he says, he observed a quick tremulous motion, and several irregular 

 bright spots between the cusps, which disappeared in a few moments ; and he 

 thought the moon's body passed quicker about the time of the annulus, espe- 

 cially as it was forming, than at any other time during the eclipse. 



Before the western limb of the moon reached the centre of the sun's disc the 

 sun was hid under a cloud, and continued so till within some little time of the 

 end of the eclipse, which happened at 1 1'' 50™. 



There was no cloud all the time of the formation of the annulus, or the dura- 

 tion of it; and he thinks he is pretty right, as to the time of its continuance, 

 for both the formation and breaking were very sensibly to be observed, and 

 passed in a moment; affording a very pleasing sight, by the irregular tremulous 

 spots of the sun. 



He says,- the darkness, during the annulus, was not so great as a little before 

 and after; and, when greatest, was only somewhat duskish, but observable. 

 Some saw a star to the east of the sun; but he saw it not, nor any present with 

 him. He was told of it after his observation was over. 



He says, that, by an observation taken of the sun that day at noon, he found 

 that his clock was somewhat less than a minute faster than the sun. He says 

 also, that he observed this eclipse with a telescope 3 feet long, and that he had 

 a very good burning-glass; but that it had little force during the annulus, and 

 some short time before and after. 



Mr. Duncan Frazer writes to Mr. Monro, professor of anatomy at Edinburgh, 

 that he went to the house of Culloden, lat. 57° 29' n. on purpose to observe the 

 eclipse; it having been said, that the centre of the eclipse would pass there; 

 and after having adjusted his clock by the regulator clock of a watch-maker at 

 Inverness, he observed the eclipse with a telescope 5 feet long, and found 



