I., pages 145-146, is made from a photograph acquired through the late Dr.P.Lamborn.The illustration in Vol.II., pages 464-465, I owe to the courtesy of Mr.D.Gabriel Castanos, of Guadalajara.
The coloured illustrations are represented as the objects appear when the colours have been brought out by the application of water.
The maps do not lay claim to an accuracy which, under the circumstances, it was impossible to obtain, but they will, I hope, be found to be an improvement on the existing ones.
Dr.Ales Hrdlicka, who has just returned from the Hyde expedition, informs me that in visiting the western part of Sonora he found pure Opata spoken west of Rio de Sonora and north of Ures, _e.g_., in Tuape.
Wherever dollars and cents are given Mexican currency is meant.
In the Indian Songs II., 10 and 18, I have made an attempt at rendering the native words in English in such a form that the translations could be sung, without, however, deviating from the original.
In the native words "x" should be given the sound of the Greek chi.
CONTENTS.