The Manóbos of Mindanáo; Memoirs of the National Academy of Sciences, Volume XXIII, First Memoir, has been considered an important book throughout the human history. So that this work is never forgotten we have made efforts in its preservation by republishing this book in a modern format for present and future generations. The whole book has been reformatted, retyped and designed. This book is not made of scanned copies and hence the text is clear and readable.