EIGHTY-FIRST ANNUAL REPORT 21 



By the end of the fiscal year the Missouri Basin Chronology Program 

 has been in operation 6^4 years. The cooperation of other institutions 

 and individuals within the anthropological profession continued as in 

 the past. Dendrochronological research has been much reduced be- 

 cause personnel were lacking. However, some new material was 

 studied and plans have been completed for a renewed attack during 

 the coming year. The carbon-14 section continued to progress with 

 the addition of 15 new dates. Eight dates, from three sites, apply to 

 villages of both the Middle Missouri and Coalescent Tradition of the 

 Big Bend Reservoir, central South Dakota. Three additional dates 

 derive from two sites, a group of burial mounds and a late fortified 

 village, in the Oahe Eeservoir of northern South Dakota. The re- 

 mainder date various preceramic horizons from a stratified site in 

 the Yellowtail Eeservoir, Mont. The Missouri Basin Chronology Pro- 

 gram continued to use the facilities of Isotopes, Inc., as well as those 

 of the division of radiation and organisms of the Smithsonian 

 Institution. 



The laboratory and office staff of the Missouri Basin Project de- 

 voted most of its effort during the year to the processing of materials 

 for study, preparing specimen records, typing, filing, and illustrat- 

 ing records and manuscripts. The accomplishments of the laboratory 

 and office staff are listed in tables 1 and 2. 



During the first quarter. Dr. Robert L. Stephenson, chief, devoted 

 most of his time to the overall management of the Missouri Basin 

 Project, including the office and laboratory in Lincoln and the several 

 field parties. He devoted a portion of his time to laboratory analysis 

 of materials he had excavated in previous years. His report, "The 

 Accokeek Creek Site : A Middle Atlantic Seaboard Culture Sequence," 

 was published by the University of Michigan, and he submitted several 

 book reviews for publication. Until September 30, when he assumed 

 his new duties as assistant director of the River Basin Surveys in 

 Washington, D.C., he continued to serve as chairman of the Missouri 

 Basin Chronology Program, as assistant editor of "Current Research" 

 in the Plains area for American Antiquity^ and as editor of the Plains 

 Anthropologist. 



Dr. Warren W. Caldwell worked in the laboratory through the first 

 quarter, analyzing materials excavated in the previous two field sea- 

 sons. A substantial portion of a manuscript entitled, "The Grand 

 Detour Phase : Early Village Sites in the Big Bend Reservoir, South 

 Dakota" (with Richard E. Jensen) was completed by September 30, at 

 which time Dr. Caldwell assumed the duties of Chief of the Missouri 

 Basin Project. During the remainder of the year, Dr. Caldwell devoted 

 a substantial portion of his time to the management of the Project, 

 to budgetary matters, and to the planning of the forthcoming field 



