134 UNDER THE OPEN SKY 



get more than we can throw away, and 

 consequently we get warmer day by day. 



With us, of course, the sun never gets 

 directly overhead. If it did we would be 

 in the torrid zone. But now it is daily 

 farther south of the overhead point at noon, 

 and we are getting its rays more and more 

 slantingly, and hence getting less and less 

 heat from them. For the more inclined the 

 sun's rays are, the greater the area a given 

 amount of them will cover, and hence the 

 less they will heat any given spot. By 

 early August the income and outgo will bal- 

 ance, and from that time on we must con- 

 stantly draw on our accumulations. These 

 daily draughts on our store continue until 

 late December, when they are heaviest. 

 After that they grow daily less, for our in- 

 come slowly increases. But it is not until 

 February that our call on the reserve ceases 

 and our fortunes reach their lowest ebb. 

 From that time we add daily to our store. 

 But it is not the heat of July that oppresses 

 us so much as the moisture in the air. For 

 moisture interferes with our perspiration, 



