8 



PHYSIOGRAPHY. 



[CHAP. 



shadow again, when it has reached exactly the same length. 

 The afternoon shadow will then be just as much on one 

 side of the meridian line as the forenoon shadow was on the 

 other side. The mid-day line, or line which runs due north 

 and south, will therefore be exactly half-way between the 

 two shadows. 



Fig. I. — How to find the Nor'.h point. 



But it is by no means necessary to have daylight in order 

 to discover the direction of the cardinal points. If- you 

 look up into the heavens on a clear starry night you will 

 have no difficulty, in this part of the world, in finding that 

 curious group of seven bright stars known as Charles's 



