various tribes of the Colombian Comisaria del Vaupés and 
the Rio Uaupés of Brazil were transported into the area 
by air. Thus, I had an unparalled opportunity of investi- 
gating the preparation of the narcotic by natives of tribes 
isolated from one another by long distances. To the pres- 
ent, the investigation has disclosed the use of the snuff 
in Colombia amongst the Puinaves of the Rio Inirida, 
the Kuripakos of the Rio Guainia, the Kubeos of the 
Rio Vaupés and its Colombian affluents, the Tukanos of 
the Rios Vaupés and Papuri, the Barasanas and Makunas 
of the Rio Piraparana and the Taiwanos of the Rio Kan- 
anari. In Brazil, its use is known amongst the Tukanos of 
the Rio Uaupés, and there is some indirect evidence that 
the several tribes of the Rio Issana likewise employ it. 
The narcotic snuff prepared from species of Virola is 
called yda-kee in Puinave and ya-to in Kuripako; the 
Tukanos eall it pa-ree-Ad, which is a loan word from the 
Nheéngatt or Lingoa Geral parica, the term by which the 
snuff is known in the Rio Negro-Uaupés area of Brazil. 
The species of Virola employed in preparing the nar- 
cotic snuff have been verified as the following :’ 
1. Virola calophylla Warburg Nova Acta Acad. 
Leop.-Carol. 68 (1897) 281. 
Myristica calophylla Spruce Journ. Linn. Soc. 5 (1860) 
4, nomen nudum. 
Virola incolor Warburg loc. cit. 282. 
Otoba incolor Karsten ex Warburg loc. cit. 282, in 
synon. 
This species is known from Amazonian Brazil and ad- 
jacent parts of Colombia, Peru and Venezuela. Prior to 
the collection of the material cited below, the species was 
known in Colombia only from Villavicencio. Subsequent 
"I acknowledge gratefully the verification of my identifications by 
Dr. A. C. Smith of the Smithsonian Institution. 
[ 242 ] 
