I'lioto by llirain llingliani 



EXPLORING FIVE HOURS I.ATl-R 



Five hours after crossing the snow pass shown in the last picture we were going through 

 a dense tropical jungle at an elevation of lo.ooo feet above the sea. This proximity of the 

 Arctic regions to the tropical is one of the most striking and at the same time one of the 

 most trying features of the work of Peruvian exploration. 



547 



