252 A BOOK-LOVER'S HOLIDAYS 



humpless camels, of which the ancestral forms 

 were abundant in the North American Miocene. 

 But one of my companions, the distinguished 

 Argentine explorer, educator, and man of 

 science, Francisco Moreno, had some years pre- 

 viously made a discovery which showed that 

 not many thousand years back, when the In- 

 dians had already come into the land, the huge 

 and varied fauna of the Pleistocene still lingered 

 at the foot of the Andes. He had found a cave 

 in which savage men had dwelt; and in the cave 

 were the remains of the animals which they 

 had killed, or which had entered the cave at 

 times when its human tenants were absent. Be- 

 sides the weapons and utensils of the savages, 

 he had found the grass which they had used for 

 beds, and enclosures walled with stones for pur- 

 poses of which he could not be sure. It will 

 be remembered that in the cave-home of the 

 'Ndorobo which Kermit found there were beds 

 of grass, and enclosures walled with brush, in 

 which their dogs were kept. Whether these 

 early Patagonian Indians had dogs I do not 

 know; but many African tribes build low stone 

 walls as foundations for sheds used for different 

 purposes; and sometimes, among savages, it is 

 absolutely impossible to guess the use to which 

 a given structure is put unless it is actually seen 



