B,ock Mo. J. 



Hock No. 2. 



figure; I. THE FIRST STAGfi IN MAKING THE) BRIDGE BY WHICH WE CROSSED THE 

 URUBAMBA RIVER TO REACH THE FOOT OF THE .PRECIPICE NEAR MACHU PICCHU 



Ilock No. 2. 



FIGURE 2. "a EONG STRINGER WAS NOW PUSHED OUT ON THE COMPLETED PART 

 AND THE END THRUST OUT OVER THE WATER" 



FIGURE 3. THE FINAE STAGE IN GETTING THE HEAVY TIMBER ACROSS THE RAPIDS 



(see PAGES 417 AND 423) 



422 



