THE KING'S MIRROR 99 



in winter and stars are visible at midday when the day 

 should be brightest; later, however, when the days be- 

 gin to lengthen, they grow so rapidly that early in spring 

 daylight begins to tarry all the night and continues 

 till much of the autumn is past. 



There remains one more proof which will seem very 

 clear to you. You know that in those localities in Haloga- 

 land that we have just mentioned the sun about May 15 

 begins to shine with the same brightness by night as 

 by day, never setting either at night or during the day 

 but shining continuously in this manner and with this 

 brightness, except when its light is obscured by clouds, 

 even to July 25. Now you know that the sun is only 

 moderately warm in Halogaland, and that there is but 

 a little time in summer when it gives sufficient warmth. 

 Still, there it is with its blazing disk about as long as we 

 have just stated, and it maintains the daylight about as 

 long as we have just computed. But neither fact is true 

 of the southlands, though the sun is hotter there. Now 

 these facts give evidence that the sun is more distant 

 here, for it gives less heat. They also testify to the wax- 

 ing of its course, for, since its light is as bright by night 

 as by day, its path must lengthen more rapidly here. 

 But yonder it waxes less and more slowly, for there the 

 night has its prescribed period both for length and dark- 

 ness in summer as well as in winter. 



VIII 



THE MARVELS OF NORWAY 



Son. I see this so clearly now that I can no longer 

 gainsay that the sun mounts higher and more rapidly 

 up the sky where there is almost no day in winter and 



