We are grateful to Peggy Lee Fiedler who assisted in the early 

 stage of gathering the literature on archeological coca and to 

 Jeff Boeke and Wade Davis for furnishing critical specimens 

 used in this study. Jose Schunke V. was instrumental in 

 providing valuable assistance during field work in Peru. Dr. 

 Maria Rostworowski de Diez Canseco helped us to determine 

 the origin of archeological specimens in Peru. Dr. Michael 

 Mosely and Dr. Robert Feldman provided us with archeological 

 coca specimens and alerted us to the existence of materials at the 

 Lowie Museum of Anthropology. The Lowie Museum kindly 

 furnished us with photographs of their specimens to illustrate 

 the text. 



Part of the research (T. P.) reported in this paper was sup- 

 ported through a contract with the United States Department of 

 Agriculture (no. 12-14-1001-230) and by a grant from the Na- 

 tional Institute of Drug Abuse (no. 5 ROl DA022I0-02). Field 

 work (T.P.) in Peru was supported by the Field Museum of 

 Natural History and by the National Science Foundation during 

 the Alpha Helix Amazon Expedition Phase VII (grant no. GB- 

 37130). 



Parts of the research reported here are based on portions of a 

 doctoral dissertation (Rury, 1982) written at the University of 

 North Carolina. This doctoral research was supported in part by 

 the William C, Coker Fellowship and the Smith Fund for 

 Dissertation Improvement at the University of North Carolina. 

 Field studies in Peru (P.R.) during 1981-1982 were supported by 

 the Katharine W. Atkins Fund of Harvard University. We 

 gratefully acknowledge the full cooperation and generous 

 assistance of the authorities and staff of both the Museo de 

 Historia Natural 'Javier Prado' and the Empresa Nacional de la 

 Coca (ENACO), Lima, Peru. 



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