RIVER BASIN SALVAGE PROGRAM — ROBERTS 549 



Dr. Paul B. Sears of Yale University and Mrs. Catherine Clisby of 

 Oberlin College. Other geologic-climatic studies may assist in assign- 

 ing the older cultures to their proper periods. The results of this 

 program thus far have helped to clarify a number of troublesome fac- 

 tors. The information has also made possible more efficient planning 

 of the salvage operations. 



Reprints of the various articles in this Report may be obtained, 

 as long as the supply lasts, on request addressed to the Editorial and 

 Publications Division, Smithsonian Institution, Washington 25, D.C. 



