62 



LEWIS 



to these features the arcs of two other circles were seen. The 

 two arcs that appeared to be about tangent to the outer edge 

 of the sun curved in opposite directions from each other and 

 intersected one another at a point on or near the line of sym- 

 metry, or 1 80° from the sun. The arcs formed approximately 

 half circles, and were doubtless caused by the same general 

 condition in the clouds that caused the complete circles seen 

 at Media. The marked difference is very interesting, yet 

 rather confusing and difficult to definitely explain, but was 



HQglZOKl 



Figure 4 



