[1] A short introduction to cacao and its cultivation in the
Philippines.
[2] Le Cacaoyer, par Henri Jumelle. Culture de Cacaoyer dans Guadaloupe
par Dr Paul Guerin.
[3] Cacao, by J. H. Hart, F. L. S. Trinidad.
[4] "Shade in Coffee Culture." U. S. Dept. Ag., Washington, 1901.
[5] According to "Historia de Filipinas," by P. Fr. Gaspar de
S. Augustin, cacao plants were first brought here in the year 1670
by a pilot named Pedro Brabo, of Laguna Province, who gave them to
a priest of the Camarines named Bartoleme Brabo.
[6] "Cacao," p. 16.