of Edinburgh, Session 1885 - 86 . 
503 
Radius of red, 
Mean 22° 54'. 
1st measurement, 22° 45' 
2nd „ 22° 30' 
3rd „ 23° 0' 
4th „ 23° 20' 
August 12, 1884. — At 3 h badly defined lunar corona, red outside. 
Radius of red, 2° 50'. 
Red 
August 31, 1884. — At 21 h 12 m double lunar corona Yellow 
and a lunar fog bow observed. Colours of corona as in Bi ue 
diagram. Radius of outer red, 4° 32' : radius of inner 
° ’ 3 Yellow 
red, 2° 15'. White 
D 
Sept. 11, 1884. — At l h lunar corona observed. Blue 
Radius of red ring, 3° 22'. Yellow inside the red, and Yellow 
outside the red a blue margin. )) 
Sept. 17, 1884. — In the afternoon glories were seen on the fog in 
the valley to northward. Red outside, with yellow, green, and blue 
inwards. At times a faint outer (second) one was seen, but they 
were all too evanescent for measurement. 
Similar glories were seen on Sept. 20. 
Oct. 4, 1884. — While the moon was partially eclipsed a strong 
double corona appeared round it. Radius of outer red, 3° 53' ; 
radius of inner red, 2° 26'. 
Oct. 5, 1884. — At l h 15 m double fog bow observed. Radii 
approximately 37J° and 32J°. At l h 30 m triple corona observed. 
Radii : 1st ring (outside of red), 2° 3'; 2nd (outside of red), 3° 1'; 
3rd (outside of red), 4° 5'. 
N.B . — For details of the last two coronse see Nature , Oct. 23, 
1885, vol. xxx. p. 613. 
Oct. 12, 1884. — Lunar corona at 5 h . Colours as in diagram. 
The outer blue in coronse of this type forms a distinct Blue 
margin or glare. This corona was formed on passing gj ue 
fog or scud ; its size appeared to vary. D 
Nov. 3, 1884. — At ll h solar fog bow observed, with colours; red 
inside. 
Nov. 7, 1884. — At midnight faint misty corona observed; red 
outside. Radius of red = 2° 30'. 
