This document consists of the four issues of "Notes on Linguistics" published during 1991. Articles in the four issues include: "Linguistics without Books: A Diary Entry" (John Verhaar); "Writing for Scholarly Publications" (Howard Law); "Will Kofi Understand the White Woman's Dictionary?" (Gillian Hansford); "Tips About 'WORD'" (Bryan Harmelink); "Checklist for Writing Book Reviews" (translated by Dwight Day); "Introduction to Two-Level Phonology" (Evan L. Antworth); "Computing in Linguistics: A Two-Level Processor for Morphological Analysis" (Gary F. Simons); "On Ambiguity: A Diary Entry" (John Verhaar); "Handling Language Data: Excerpts from a Field Manual" (Thomas Payne); "How Pragmatic Is Pragmatics?" (J. Douglas Wingate); "Reanalytics: A Diary Entry" (John Verhaar); and"Readability Revisited" (Charles Peck). Number 54 is devoted to author, title, and keyword indexes of previous issues. (MSE)