1g1t] YOUNG—BRAZIL NUT 220 
that it is this species which furnishes the Brazil nut. The long 
time which elapsed previous to the identification of a second 
species allowed this view to become so thoroughly established that 
MieRs’s work appears to have been overlooked by persons inter- 
Fic. 1.—Reproduction of Mrers’s drawings of Bertholletia, copied half-size from 
Trans. Linn’ Soc. 30: pl. 37. figs. 1-3, Bertholletia excelsa: 1, pyxidium cut open to s! 
structure; 2, section of opercular opening; 3, operculum; 4-7, Bertholletia i 
4, pyxidium cut open to show structure; 5, section of opercular opening; oper- 
culum; 7, a — of seeds (Brazil nuts).—Published by courtesy of the fein 
Society of Lon 
