510 
Proceedings of the Royal Society 
Yellow P ec ’ 20, 1885. — Double lunar corona at midnight; 
colours as in diagram, but very pale and faint. Radius 
Pale yellow of inner red, 3° 3'. 
Bluish white 
D 
Dec. 21, 1885. — At 5 h triple lunar corona. Reds outside. 
Radius of innermost red, 1° 5'; radius of middle red, 1° 55'; 
radius of outermost red, 2° 55'. 
Dec. 22, 1885. — Lunar balo, white, at 23 h . Radius to inside, 
20° 41' and 20° 16' ; radius to outside, 27° 29' and 27 ? 23'. Two 
measurements. 
Bed 
Yellow 
Blue 
Red 
Yellow 
Pale green 
Bed 
Yellow 
Bluish 
yellow 
D 
Bed 
Dec. 23, 1885. — Triple corona at i h ; colours as in 
diagram, but outermost ring very faint. Radius of 
innermost red, 1° 35' ; radius of innermost yellow, 
1° 11'; radius of outside of green, 2° 26'; radius of 
middle yellow, 2° 48'; radius of middle red, 3° 12. 
Jan. 18, 1886. — At 17 h double lunar corona ob- 
Yellow 
Yellowish 
D 
served; colours as in diagram. Radius of red, 1° 41'; 
radius of yellow, 0° 58'. Similar corona seen at 21 h . 
Bed 
Yellow 
Bluish 
green 
Red 
Orange 
Yellow 
Whitish 
> 
Jan. 20, 1886. — Double lunar corona observed at 
2 h . Formed on scud. Colours as in diagram. Very 
fleeting, and size varying. Two measurements made 
within one minute of each other gave for radius of 
inner red, 3° 33' and 3° 7'. The colours were always 
the same, though the size varied. 
Feb. 10, 1886. — Double solar fog bow seen at ll h . Traces of 
red on outside of outer bow, and on inside of inner. Radius of 
outer bow about 42° 4 ; radius of inner bow about 33° O'. 
Feb. 14, 1886. — At ll h glory and fog bow seen on fog in 
northern valley (see fig. 7). Fog bow tinged with red outside; 
outside of glory red also. Outer radius of fog bow, 45° 12'; inner 
radius, 40° 0' ; radius of red of glory, 1° 6'. 
Feb. 15, 1886. — At 9 h solar halo, with portion of reverse arc on 
upper side of it in large halo, red inside and blue outside ; in portion 
above, red next sun and blue inside curvature. This upper arc 
overlapped on the main circle, bringing their reds together. 
