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YEARBOOK, PUBLIC MUSEUM, MILWAUKEE 



[Vol. III. 



ordinary 5x7 camera was fitted with a telephoto lens and a colored 

 light filter. With this apparatus photographs were taken at intervals 

 of ten minutes throughout the duration of the eclipse, beginning at 

 12:50 P. M. when the first indication of the shadow on the sun was 

 noted. This series of photographs is reproduced in figure 93. 



Fig. 94. — The crescentric shadows cast by the foUage of the 

 trees during the ecHpse. 



The shadow encroached on the sun's disc from the western side 

 and eventually about 85% of the sun was concealed, at 2 :06 P. M. 

 At that time it became quite dark, but with a sort of white ghostly 

 light very different from the twilight which occurs at sunrise and sun- 

 set. The shadows on the ground where the sunlight filtered through 

 the leaves of the trees, were perfect crescents in shape as shown in 

 figure 94. 



