OUR FRIEND THE DOG 



But how much care and study 

 are needed to succeed in fulfil- 

 ling this duty! And how com- 

 plicated it has become since the 

 days of the silent caverns and 

 the great deserted lakes ! It was 

 all so simple, then, so easy 

 and so clear. The lonely hollow 

 opened upon the side of the hill, 

 and all that approached, all that 

 moved on the horizon of the 

 plains or woods, was the un- 



L X**** 



mistakable enemy. . . . But to- 

 day you can no longer tell. . . . 

 H 21 H 



