1SOPERIMETRICAL PROBLEMS. 



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If the land is all of equal value the general 

 solution of the problem shows that her line of 

 ox-hide should be laid down in a circle. It 

 shows also that if the sea is to be part of the 

 boundary, starting, let us say, southward from any 



given point, A, of the coast, the inland bounding 

 line must at its far end cut the coast line 

 perpendicularly. Here, then, to complete our 

 solution, we have a very curious and interesting, 

 but not at all easy, geometrical question to 



