THE TOTAL ECLIPSE OF JUNE 8, 1918 



531 



Only three star images (including Jupiter) are visible on this 

 plate. Jupiter's image is very distinct, but too near the edge of the 

 plate to be good. Beta and Zeta Tauri are at the very limits of 

 the field, and their images appear as crescents. 



Fig. 133.— Plate No. 1. Exposure one second; 5'' 23'" ST*' to 5^ 23'" 58' 



F'ive photographs were taken with the eight and one-fourth inch 

 equatorial with the following exposures : 



The 1-second and the 5-second exposures are the best plates. 

 They were developed with metol-hydrochinon developer. The struc- 

 ture of the corona is well shown on both plates. It is composed of 

 interlacing rays radiating from the sun, giving a strong resemblance 

 to the aurora. Some streamers are very much brighter than others 



