PLATE I 



Location of Sloth. 



A. View of Aden Crater. 



B. Looking west into the crater through the breach in the eastern wall of the 

 rim. The opening into the sloth pit reaches entirely across the floor between 

 the man on the left and the one on the right. 



Photograph by Longwell. 



C. Opening of sloth pit looking obliquely downward from the south side of 

 the breach. The opening is somewhat foreshortened in the view. 



Photograph by Longwell. 



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