The book contains 53 articles by the author from working papers of limited distribution. 4 articles are on Eskimo, while the bulk covers a variety of Indo-European subjects, with a special emphasis given to the reconstruction and analysis of the Indo-European protolanguage, the tracing or morphological categories, the Balto-Slavic accents, the problems presented by the Indo-European 'laryngeals', and the etymology of individual words from all branches of Indo-European. Seven articles are published for the first time.