36 ANNUAL REPORT SMITHSONIAN INSTITUTION, 19 64 



history of the region. In addition, he continued Avork on two manu- 

 scripts, one dealing with the 1961-62 Smithsonian excavations at the 

 Lamb Spring archeological-paleontological site near Littleton, Colo., 

 and the other with the 1952 Smithsonian-Princeton investigations at 

 an ancient bison kill near Cody, Wyo. The latter site has recently 

 been dated by the radiocarbon method at 8,750-8,840 years ago. At 

 the close of the year he was back in the Middle West. 



Dr. Clifford Evans, curator of archeology, and research associate 

 Betty J. Meggers completed a major monograph on the Valdivia and 

 Machalilla phases of the Early Formative period of coastal Ecuador. 

 Twenty-two dates obtained by processing shell and charcoal samples 

 in the Smithsonian's Carbon Dating Laboratory convincingly bracket 

 the Valdivia phase at 5,150 to 3,400 years ago. 



After joining the staff in December as associate curator of arche- 

 ology, Dr. Richard B. Woodbury made two trips to the Tehuacan 

 Valley in southern Puebla, Mexico, in continuation of his research on 

 preindustrial systems of water management in arid regions. He found 

 evidence of large-scale irrigation from Late Formative times on, that 

 is, for about 2,500 years — probably the longest record of irrigation 

 in the New World. Dr. Woodbu.ry also continued working with re- 

 search associate Nathalie F. S. Woodbury on a report dealing with the 

 Hawikuh archeological site in New Mexico, based on the unpublished 

 records obtained in 1917-23 by the late F. W. Hodge, following his 

 departure from the Smithsonian's Bureau of American Ethnology. 



In collaboration with Drs. Glen H. Cole of the Uganda Museum and 

 A. Jamme of the Catholic University of America, Dr. Gus Van Beek, 

 associate curator of archeology, completed a preliminary report on an 

 archeological reconnaissance in Wadi Hadhramaut, South Arabia, 

 undertaken in 1961-62. He also spent several weeks during April 

 and May in an archeological reconnaissance in Yemen, at the invitation 

 of the Yemen Arab Republic Government. On the way back to the 

 States he visited sites in Ethiopia and conferred with colleagues in 

 Aden and Jordan. 



Museum specialist George Metcalf continued his studies of arche- 

 ological materials from central Nebraska, encouraged by 11th- to 14th- 

 century site dates supplied by the Smithsonian's Carbon Dating 

 Laboratory. Dr. C. G. Holland, honorary collaborator, having visited 

 161 archeological sites in southwestern Virginia in 1963, progressed 

 with his analysis of the collections and site data. Honorai-y research 

 associate Neil M. Judd completed his final monograph {The Architec- 

 ture of Puehlo Bonito) relating to the archeology of Chaco Canyon, 

 N. Mex. During the summer of 1963, Dr. John M. Campbell, honor- 

 ary research associate, carried out an archeological and ecological 

 survey of the Koyukuk River drainage in northern Alaska. Follow- 



