314 
Proceedings of Boyal Society of Edinburgh . [june 20 , 
5. Glories, Halos, and Coronse seen from Ben Nevis Obser- 
vatory. Extracts from Log Book. By R. T. Omond. 
Communicated by Professor Tait. (Plate XII.) 
Bed 2 
Bed and 
Blue 
Bed 1 
D 
May 23, 1886. — Solar corona seen at 12 h . Colours 
as in margin. Inner and outer reds distinct, but space 
between very mixed in colours. 
Radius of inner red, . 3° 25' 3° 25' 3° 18' 3° 25' 
„ outer red, . 6° 41' 6° 35' 6° 41' 6° 41' 
May 27, 1886. — At 13 h bright solar halo seen; red inside, then 
yellow, and blue outside. 
Radius 
of Red. 
Yellow. 
Blue. 
I. 
21° 
24' 
23° 44' 
24° 43' 
II. 
22° 
0' 
22° 49' 
24° 43'< — > 
III. 
22° 
12' 
23° 30' 
24° 13' | 
IV. 
22° 
0' 
23° 3' 
24° 43' f 
The double-headed arrows show the diameters along which the 
measurements (I., II., III., and IV.) were taken. 
June 4, 1886. — At 5 h 10 m halo and mock suns seen. Halo red 
inside and blue outside. Mock suns at each side, so bright as to 
be dazzling ; right hand the brightest. Radius from centre of sun to 
centre of mock suns = 23° 17'. Vertical white beam below sun, and 
horizontal segment passing through mock sun ; this horizontal arc 
was 12° 32' above the level-topped haze that hid the horizon. The 
mock sun on the right was white and outside the red of the halo ; 
the mock sun on the left side was coloured red, yellow, and blue 
in same order as the halo. The following measurements of the 
halo were made 
Radius of red, . 22° 36' 22° 36' 
„ yellow, . 23° 3' 23° 30' 
„ blue, . 23° 44' 23° 44' 
At 8 h the halo was seen again ; rather faint. 
Radius of inside of red, 22° 0' 
,, outside of red, 23° 17' 
,, outside of blue, 24° 43' 
Measured on lower 
segment of halo. 
