f 2 5° ] 
/^\N Thurfday the 3 October 1751, at 30' after 9 
in the forenoon, I obferved about the fame fpot 
a like iris. It was a very fair morning : there had 
fallen a large dew in the night, and the lawn was 
then, and the night before, webbed over as it was 
the 23 September. 
The dimenhons of this laft iris expreffed in the an- 
nexed Fig. N°- 2, were taken with more accuracy 
than the former. I mealured it only to G, but it was 
vifible much farther than the whole extent of the 
lawn. 
In Fig. 2. the diftance from 
A to G was = y4 feet 2- inches 
A to C = 2 feet 3 \ inches 
A to B = 4 feet 6 inches 
C to B = 4 feet 
D to H = 1 6 feet 
Hto F= 22 feet 7 inches 
E to F= 12 feet 7 inches 
Hto K — 27 f eet 
K to G = 42 feet 10 inches 
G to F — 30 feet 10 inches 
B to D = 1 6 feet S inches 
DtoE=ii feet 9 inches 
£ to C = 8 feet 6 inches 
k 
Fig. 
