Photo by Hiram iiingliani 



THE MOST INGENIOUS EOCK IN MACHU PICCHU 



The gateway to Ingenuit}' Group had lock-holes dififering from those of other groups 

 (see pp. 464, 466-467), m that they were cut out of smgle blocks of stone and had the stone 

 cylinder not set mto, but forming part of the whole block (see also page 471). 



Photo by Hiram Bingham 



A TYPICAL HOUSE DOOR: MACHU PICCHU 



The doors of the houses were carefully made and are all narrower at the top than at 

 the bottom. The lintels are usually made of two blocks of stone. The Indian boy in the 

 picture is carrying the kodaks and a large map, in ten sheets, on which are shown all the 

 houses. 



470 



