SOLAR HALO. 



6l 



and the parhelic circle. The phenomenon was visible from 

 the Weather Bureau from lo A. M. until 12.30 P. M. 



Figure 3 represents conditions as observed by Mr. M. H. 

 Hoyt, of Media, from a point on the roof of the Belmont 

 Iron Company Building in Philadelphia. Mr. Hoyt's observ- 

 ations as to the inner and outer halo are similar to the halos 

 shown in Figures i and 2. The parhelic circle, however, 

 appeared between the two halos ; that is, on the southeast 

 side instead of the northwest side of the sun, and in addition 



OUTER HALO 



H0R-\210K 



Figure 3 



