ACKNOWLEDGMENTS 
While my own research, on which the present 
paper is in part based, was financed by the Insti- 
tute of Social Anthropology of the Smithsonian 
Institution, that of my friends and colleagues, 
Senores Jorge C. Muelle, José M. B. Farfan, and 
Gabriel Escobar M., was made possible by a 
grant from the Viking Fund, Inc., of New York, 
to the Muséo Nacional de Historia de Lima. 
First and foremost I wish to express my sincere 
thanks to Dr. Luis E. Valcarcel, Minister of 
Education, who has done so much to further the 
interests of ethnological investigation in Peru and 
who has written the Preface to the present paper. 
Dr. Valcarcel assisted our studies in every possible 
way and offered much useful advice and many 
helpful criticisms; indeed, several of the commu- 
nities described in the following pages were 
visited at his specific suggestion, and the survey 
itself was originally his idea. 
In the Central Highlands we were assisted by 
many persons. I wish to thank Senor and Senora 
José Devéscovi of Huancavelica for hospitality as 
well as for the use of their trucks. Mr. Eugene 
Brown and Mr. Cyril L. Fleischman, of Mina 
Santa Inés in Huancavelica Department, extended 
us their hospitality and made available transpor- 
tation to Castrovirreina and Choclococha. 
In the Huancayo region Mr. Paul G. Ledig, 
Observer in Charge of the Huancayo Magnetic 
Observatory of the Department of Terrestrial 
vill 
Magnetism of the Carnegie Institution of Wash- 
ington, extended us his hospitality, offered advice 
based on 20 years’ residence in the Jauja Valley, 
and furnished us with transportation to Chupaca, 
Sicaya, and elsewhere. Mr. and Mrs. Mark 
Wallon Jones, also of the Huancayo Observatory, 
assisted us in many ways. To Rev. Bernard 
Blemker, S. M., and Brother Paul Schneider, S. 
M., of Chupaca, we are indebted for information 
and assistance. 
Senor Pierre Garrigue, Sub-Director of the 
Compagnie des Mines de Huarén, extended to us 
the hospitality and facilities of the mining camp 
during our stay in the region of Huayllay and 
Huaychao. 
I wish to thank Mr. Herbert R. Ramus, of 
La Oroya; Mr. George Munro, of Lima; Senor 
César Pizzigoni, of San José; and the Cerro de 
Pasco Copper Corp. for photographs which they 
kindly furnished and which appear in the present 
paper. 
Finally I am indebted to Senores Jorge C. 
Muelle, José M. B. Farfan, and Gabriel Escobar 
M. for their friendly and whole-hearted cooperation 
in the field, and to Senorita Elena Ferreyros for 
her able assistance in the preparation of the 
manuscript. 
H. Tscuoprix, Jr. 
Lima, Peru, Marcu 29, 1946. 
