SUNDOGS AND HALOS SEEN AT NJOEO 97 
11 a.m. — Surrounding circle (ABC) getting indistinct. 
11.10 a.m. — Surrounding circle very brilliant again, and 
large arc of Fig. 6 much reduced in size and brilliance. 
Sundog-s, November 5, 1909; Njoro, 10 a.m. 
6 
Fig. 6. — N. and S. rainbows joined permanently at lower ends and form 
large ellipse outside main phenomenon. 
Rainbow ellipse about } periphery. 
Am almost convinced that phenomenon is not due to 
moisture, as there is at present little haze in the sky in the 
region of the sun, and the brilliance does not seem to be affected 
by the amount of haze. 
11.80 a.m. — Fig. 7. Large outer arc of Fig. 6 disappeared. 
Surrounding circle very bright. Bright haze concentrated 
round the sun. 
11.45 a.m. — Phenomenon disappearing. 
