26 FIRST YEAR COURSE IN GENERAL SCIENCE 



May 13 to July 29, and it never rises from November 18 

 to January 23. 



17. The Place of Sunrise. In March, when the sun 

 is over the equator and midway between the north and south 

 poles, it rises everywhere exactly in the east, midway 

 between the north and south points on the horizon. 



FIG. 5. THE PLACE OP SUNRISE 



1. If you were playing tennis on a spring morning at a position on the 

 line EW, what would be the best direction to face? Why? 2. What posi- 

 tion would be least favorable for a player during an autumn forenoon? 

 Why? 3. In the afternoon in summer? 



[This picture is from A New Astronomy by David Todd. Copyright, 

 1897 and 1906, by American Book Company. Reproduced by permission.] 



During the spring months it shines each day over places 

 farther north of the equator, because its place of rising is 

 each day farther north of the east point, until June 21, 

 when it rises 23J north of east. In the early summer 

 only, in the northern hemisphere, does the morning sun 

 shine even obliquely into windows on the north side of 



