505 
of Edinburgh, Session 1885-86. 
Dec. 27, 1884. — At 18 h lunar corona observed; 
colours as in diagram. Radius of blue 2 = 1° 50'; 
radius of red 2 = 2° 25'; radius of red 3 = 4° 30'. 
At 20 h lunar corona, with colours as in diagram. 
Outer red, rather faint. Radius of red 1 , 2° 2'; radius 
of red 2 , 4° 5'. At 21 h double corona still seen. Its 
size appeared to vary, being small when the sky was 
clear of low clouds, and enlarging as the scud passing 
over the hill thickened. 
Dec. 28, 1884. — At 21 h moon was surrounded by a white glare 
about 5° radius ; no halo or corona. At 23 h and midnight, moon 
surrounded by blue corona. No other colours visible; outside 
radius, 3° 25'. At the same time the white glare had increased to 
about 15° radius. 
Red 3 
Blue 3 
Red 3 
Blue 2 
Red 1 
Whitish 
D 
Red 3 
Blue 
Red 1 
Yellow 
D 
Dec. 29, 1884. — At 20 h single corona; red outside. Radius of 
red = 3° 28'. At 23 h double corona; colours as in Red 2 
diagram ; outer red very faint ; rather misty-looking ; ]j e( p 
the size appeared to vary. Two measurements of the B1 Yeip^ 
radius of the inner red (red 1 ) gave 3° 40' and 3° 55.' }) 
Jan. 24, 1885. — At 22 h faint misty lunar corona. Red outside. 
Radius of red = 2° 30'. 
Jan. 29, 1885. — At 4 h misty lunar corona; colours as in 
diagram. Outer red very faint, making the blue look n e d 2 
more like the margin often seen than a part of the 
corona proper. Radius of inner red, 2° 14'; radius of Yellow 
outer red, 3° 38'. At 21 h faint blue corona on scud. ^ 
Feb. 4, 1885. — At 7 h 5 m double corona observed; 
colours as in diagram. Radius of inner red, 2° 36'; 
radius of outer red, 5° 10'. 
Red 2 
Blue 
Red 1 
Whitespace 
D 
Feb. 19, 1885. — At 21 h lunar corona observed; ® llie 
colours as in diagram. Radius of red, 2° 30'. Yellowish 
D 
Feb. 20, 1885. — At 21 h small yellow lunar corona 
with blue margin, the margin being faintly tinged with 
red (outside). Radius of this red = 4° 3'. [Really a Yellow 
double corona wdth the inner red cut out.] ^ 
Feb. 23, 1885. — At 19 h faint lunar corona formed on upper 
