THE MAGIC SQUARE. 



49 



two numbers of every two similarly situated cells, the magic 

 sauare, exhibited in Diagram 14, in which each row gives the same 

 sum 071. 



Fig. 12. 



Fig. 13. 



IV. 



EVEN-NUMBERED SQUARES. 



Of magic squares having an even number of places we have 

 hitherto had to deal only with the square of 4. To construct squares 

 of this description having a higher even number of places, differ- 

 ent and more complicated methods must be employed than for 

 squares of odd numbers of places. However, in this case also, as 

 in dealing with the square of 4, we start with the natural sequent 



