Columbia subject headings:
Harvard subject headings:
Enema
Ethnobotany--North America
Hallucinogenic plants--Latin America.
Indians of North America--Rites and ceremonies.
Indians--Ethnobotany.
Indians--Rites and ceremonies
Psychotropic drugs--North America.
Psychotropic plants--North America.
Snuff
Princeton subject headings:
Enema.
Indians of Central America--Ethnobotany.
Indians of Central America--Medicine.
Indians of South America--Ethnobotany.
Indians of South America--Medicine.
Snuff.