Mr. tunst all’s Account oj feveral Lunar Iris. lot 
near Chefterfield, defcr-ibed by thoresby, and inferted in N° 
331. of the Philofophical TranfaCtions : this was about Chrift- 
mas, 1710, and faid to have had all the colours of the Iris 
folarts. The night was windy, and though there was then a 
drizzling rain and dark cloud, in which the rainbow was re- 
flected : it proved afterwards a light froft. That this very 
imperfeCt account, though it may be ftriCtly relied on, may 
give any fatisfaCtion to you, or the gentlemen of the Society, 
would be the occafion of great pleafure to 
dear sir, your much obliged, &c. 
Wycliffe near Greta Bridge, Yorkfliire, 
March 1, 1782. 
The particular circumftance, . which appeared extraordinary 
to thoresby, of the bow being nearly equal in fize to that of 
the folar one, feemed to be verified by this, as the extent ap- 
peared nearly of the fame dimenfions. The wind was at 
fouth-wefl:. 
DEAR SIR, Wycliffe, Oft. 23, 1782. 
I TROUBLED you early in fpring with an account of a 
rather fingular phenomenon, feen here on the 27th of Fe- 
bruary, between feven and eight o’clock, viz. a lunar Iris with 
prifmatic colours. Since that I have feen two more here ; one 
July the 30th, about eleven o’clock, which lafted about a < 
quarter of an hour, without colours; the laft, the caufe of 
my 
