NO. 15 



SAIITHSONIAN EXPLORATIONS, I92I 



III 





Fir,. 116. — Repairing third-story walls in Pueblo Bonito. Some of these high 

 walls had been so weakened by vandalism and the elements that their repair 

 was necessary before excavation could safely be undertaken beneath. The 

 work will serve, also, to preserve the present height of the walls for many 

 3^ears to come. (Photograph by O. C. Havens. Courtesy of the National 

 Geographic Society.) 



