The volume represents in microcosm the sort of faculty-trainee-student interaction that is a priority at the Summer Institute of Linguistics (SIL) at the University of North Dakota. Seven studies by faculty and students of SIL include the following: "Lexical Variation in Mexican Sign Language" (J. Albert Bickford); "Reflexives in Veracruz Huastec" (Peter G. Constable); "A Typology of Koine Relative Clauses" (Martin M. Culy); "Switch Reference in Mbya Guarani: A Fair-Weather Phenomenon" (Robert A. Dooley); "The Nahuatl Verb 'maka': A Cognitive Grammar Analysis" (David Tuggy); "Tonal Instability: Tone as Part of the Feature Geometry" (Stephen P. Walker); and "A Morphological Parser for Linguistic Exploration" (David Weber). (MSE)