U ] 
having the luck to fee it. I did not happen to look 
out on the Tuefday night, when it was feen; fo 
heard nothing of it, till the news-paper on Saturday, 
when I did look for it with my naked eye and telefcope 
alfo; but as it was dwindled, I did not find it 3 and 
the rather, as its motion was fo fwift, I could not, fo 
many nights after, know well where to look for it. 
The comet of i 664, might have appeared nearly in 
the fame place this was feen, with a fwift motion, 
a pretty many degrees in a day, as a retrogade comet 
in oppofition to the fun generally has ; but, 1 think, 
would not have been near enough to have moved a 
degree in an hour, as this did ; and I think it would 
alfo have been larger, and continued longer, than 
this; for in 1664, it was feen four months, and 
when far difiant from the earth ; and, in the pofi- 
tion it muft have been in laft January, would hardly 
have gone farther back than the beginning of Gemini, 
in lmall N. latitude, and is, I believe, one of the 
largeft comets, 
1 have long had by me an account of a remarkable 
halo, I was called out to obferve, May 20, 1737, 
a quarter before eleven in the morning, and which 
continued half an hour, in a clear hot fky ; and was 
as in the figure. 
The common halo VXNY, and the horizontal 
white circle S X T Y, were no way different from 
ufual ; nor were any parhelia feen. All, that was 
remarkable, was an elliptical halo V P N P, coin- 
ciding at the top and bottom with the common one, 
but four degrees narrower in the leffer diameter at P 
and P, coloured juft like the halo, and at the coin- 
ciding places, efpecially at V, very bright. 
I call 
