NO. 1 



SMITHSONIAN EXPLORATIONS, I92I 



115 



village. These important structures were constructed both below 

 the level of the plazas and among the living rooms, in which latter 

 case the surrounding walls were so arranged as to simulate the refjuired 

 subterranean position. In certain features of construction and equip- 

 ment, however, Bonitian kivas — judging from the five already ex- 

 cavated — dififer from those heretofore examined in other sections of 



the Southwest. The ventilator shaft is connected with a manhole in 

 the room through a hidden tunnel ; sub-floor chambers are sometimes, 

 but not always, present ; the primary roof supports or pilasters have 

 been so specialized as to lose their original stability and to take on a 

 new function, that of depositories for ceremonial otTerings. 



The Great Kiva possesses several- noteworthy features not found in 

 the lesser structures of its kind. It is a room of exceptional size, 



