The main purpose of this study is to fill a gap in the literature on the Mixtec language of Mexico by describing, systematically and completely, the grammar of the Jicaltepec dialect of the language. A subsidiary aim is that of collecting in one place and within a unified theoretical framework, phonological information about Mixtec that had previously been available only in diverse sources. The author stresses, however, that the study is only a sketch of the language which outlines "the major aspects of the language, giving a picture of the whole but without complete details." The theoretical approach employed is basically immediate constituent analysis. Individual chapters cover phonology, morphophonemics, parts of speech and grammatical patterns. A text illustrating the statements made in the chapters on the grammatical structure is also included. A bibliography ends the study. (FWB)