I »< ) PULAR ASTRONOM V 



IOI 



faint, and allowed itself to be photo- 

 graphed only with difficulty. 



In the June issue was given Dr. 

 Ebell's estimate of the brightness of the 

 comet, but the comet has fallen far 

 short of what, judging from the 1835 

 appearance, it should have been. In 

 short, it was a disappointment to the 

 public and astronomer alike. The 

 astronomer had hoped to test many 

 interesting theories, but Halley's comet 

 probably left more puzzles than it 

 cleared away. 



In order to give our readers the 

 most direct information possible, the 



interest that might happen as we 

 passed through the comet's tail. On 

 the morning of the 18th, Professor 

 Barnard and the observers at Yerkes 

 had witnessed one of the first views of 

 the comet obtained, a broad band of 

 light five degrees in width, passing 

 through the square of Pegasus, sloping 

 upward as it passed south till it van- 

 ished in the stars of the Milky Way 

 107 from its starting place. 



The night of May 18 was a most 

 interesting one. What would be 

 observed as we passed through the 

 tail of the comet? And would the 



JULY MOON PHASES 

 NEW MOON. JULY 6. 

 FIRST QUARTER.JULY 14 

 FULL MOON. JULY 22. 

 LAST QUARTER. JULY 



Evening SkyMap for JULY 



NORTH 





MAP 



FOR 



9PM.1S 

 8PM 15* 

 7PM.3l s i 



FACE SOUTH AND 

 HOLD THE MAP OVER 

 YOUR HEAD -THE TOP 

 NORTH. AND YOU WILL SEE 

 THE STARS ANDPLANETS 

 JUST AS THEY APPEAR 

 INTHE HEAVENS 



present writer went to the 

 Observatory of the University of Chi- 

 cago at Williams Bay, Wisconsin, 

 reaching there on the important day of 

 May 18. At the observatory (where 

 this is being penned), the excitement 

 on that day was increased by the pres- 

 ence of nine newspaper reporters, who 

 were ready to chronicle anything of 



DATES AND 

 SITION OF 

 -EVs COMET 

 ARE GIVEN ON THE 

 MAP FOR JULY IN 

 WESTERN EVENING SKY. 

 SOUTH 



Yerkes comet be seen on the face of the sun ? 

 According to cometary theory, the 

 particles composing the tail were too 

 minute to form meteorites, but if they 

 carried charges of electricity, a faint 

 aurora might be seen. Unfortunately 

 the moon was bright and did not sel 

 till after two, and tne dawn came on 

 shortly after three o'clock, so that 



