150 
IOWA ACADEMY OF SCIENCES. 
second exposure plate exhibited the inner corona fairly 
well, also the large prominences on the west and a smaller 
one on the east limb. The 5-second exposure was quite 
good and shows the extensions of the Corona to a distance 
of about twice the sun’s diameter on each side of the sun’s 
equator; the polar streamers are also fairly well seen. The 
Corona on the east side of the sun extended outward 
nearly in line with the solar equator, in a long, cone- 
shaped extension with short spurs at each side of its base; 
the western streamer was in the form of a broad “fish tail” 
with curved or wing-like brighter extensions on its north- 
west and southwest sides. 
SKETCH OF THE CORONA AFTER TOTALITY. 
Shortly after totality was over a number of observers in 
our party sketched their impressions of the outline of the 
Corona from memory, and in general there was a close 
agreement between them, except as to the direction of the 
Figure 8. Sketch of Corona made from a series of photographs. 
