180 



THE NATIONAL GEOGRAPHIC MAGAZINE 



Photograph by Vittorio Sella 



AN ADVANCE DETACHMENT OF TREES RECONNOITERS THE IMPREGNABLE SUMMIT OE 

 SNOW-CLAD MOUNT SPEKE, IN THE RUWENZORI RANGE, EQUATORIAL AFRICA 



Although the Ruwenzori Mountains lie almost on the Equator, their highest peaks rise 

 above the limits of perpetual snow, and, strive as they may, the arboreal armies are turned 

 back; for here, indeed, "They shall not pass!" (See also page 184.) 



