1

Hallucinogenic plant use and related indigenous belief systems in the ecuadorian amazon

Year:
1979
Language:
english
File:
PDF, 2.23 MB
english, 1979
2

Ocotea quixos, American cinnamon

Year:
1981
Language:
english
File:
PDF, 259 KB
english, 1981
3

Social function of coca in pre-Columbian America

Year:
1981
Language:
english
File:
PDF, 1.01 MB
english, 1981
4

Epidemic Hecatomb in the New World

Year:
1992
Language:
english
File:
PDF, 864 KB
english, 1992
8

On the American Indian Origin of Syphilis: Fallacies and Errors

Year:
1994
Language:
english
File:
PDF, 1.55 MB
english, 1994