This volume, entirely in Spanish and Pima, presents extensive descriptive information about the language spoken by the Pima of Mexico. An introductory chapter reviews the history of research on the language. The second and third chapters explain its phonology and morphology. In the fourth chapter, a number of oral histories and ethnographic texts are recorded, first sentence by sentence in Pima and with Spanish translation, then in full Spanish translation. The stories relate the appearance of the image of San Francisco Javier at the pueblo of Mayacoba, confrontations between non-indigenous and indigenous populations, descriptions of local festivals and ceremonies, and folkloric tales. The fifth chapter contains a Spanish-Pima vocabulary. A brief bibliography is included. (MSE)