Developmental Trends; Development in Typical Child; Conclusion; References; VII. Cultural Significance and Lexical Retention in Tzeltal-Tzotzil Ethnobotany; Introduction; The Comparative Inventory; Analytic Categories; Cognate Sets of Tzeltal-Tzotzil Plant Names; Cultural Significance and Lexical Retention; References; VIII. Compound Place Names in Chuj and other Mayan Languages; Introduction; Sources and Identification of Chuj Place Names; The Nature of Chuj Geographical Nomenclature; Compound Chuj Place Names; Comparative Data on Compound Mayan Place Names; References.