I6 7 
kindred subjects, to whom f submitted a copy of this translation, 
has written to me a letter in which occurs the following criticism, 
viz: 
14 Many thanks for the Agricultural Bulletin, which l was glad to 
“ have. Mr. RODRIGUES is evidently a sound historical botanist, 
14 but he makes a fearful hash of the ethnological side of the rubber 
“ question. The Nauhas as he spells the name, are the Nahuas 
“ ( Nahua , plural of Nahuatl) general name of the Nakuatlan 
“ family, of which the Aztecs are a branch. But none of these ever 
“ reached South America at all, and it is quite certain that the 
“ southernmost Aztec colonists were the now extinct Segnas 
“ {Siguas or Sivas) of the Chiriqui Lagoon, where they were met by 
“the first Spanish invaders of the present Costa Rica district. 
“ Segua meaning “ Outlanders ” “ Aliens ”, was not their real name, 
" but that given to them, by the Chiriqui natives, who of course 
4i looked on them as intruders. They probably called themselves 
''Pipit (plural of Pilli) “Masters’’ Superior persons ” as did all 
“ the Aztec settlers of Nicaragua and other parts of Central America. 
“ With them the Omaguas had nothing whatever to do, though he 
“ is right in saying that these were called Cambebas (or Cavpewas) 
*' i.e., “ flatheads” in the Tupi language, the lingua geral of Brazil 
“ since its adoption by the Jesuit missionaries. But his derivation 
“ is wrong; it comes not from akong head and pena flat, which are 
“ no words, but from akanga head and pewa flat, which are good 
“Tupi. The Omaguas themselves were a distant branch of the 
“ great Tupi-Guarani stock, and had penetrated up the Amazons 
“ to the Peruvian Montana (its upper reaches, Solimoes and Mara- 
“ non) before the advent of the whites. He should consult on all 
“these matters J. C. R. Milliet de Saint Adolphe or rather the 
“ Portuguese translation (“ Diccionario Geographico Historico e des- 
“criptivo do Jmperio do Brazil” &c. &c. Paris 1863) from Milliet’s 
“ French ms. which I believe was never published. * * * * 
“You are quite welcome to put the above corrigenda , into the 
“ next Bulletin, if so disposed. ” 
A. D. M. 
Journey to a Rubber Plantation on the Isthmus 
of Columbia. 
By C. O. Weber, Ph. DA 
( Concluded from page j/ii) 
The Latex . — f have already stated that the latex obtained from 
Castilloa elastica at Las Cascadas does not flow like milk, but 
issues from the cuts in the form of a thick cream containing a very 
high percentage of india-rubber. This is certainly curious in view 
of the fact that the same tree in other districts produces a fairly 
thin milk, although 1 have been told that the Castilloa trees in 
certain districts of Guatemala and Venezuela exhibit the same pecu- 
* From the India Rubber and Gutta-Percha Trades’ Journal, Sept. 29^ 1902. 
