Notably, the laryngeal theory, in its early forms barely noticed except as a clever analysis, became mainstream after the 1927 discovery by Jerzy Kuryłowicz of the survival of at least some of these hypothetical phonemes in Anatolian. Julius Pokorny in 1959 published his "Indogermanisches etymologisches Wörterbuch", an updated and slimmed-down reworking of the three-volume "Vergleichendes Wörterbuch der indogermanischen Sprachen" of Alois Walde and Julius Pokorny (1927–32). Both of these works aim to provide an overview of the lexical knowledge accumulated until the early 20th century, but with only stray comments on the structure of individual forms; in Pokorny 1959, then-recent trends of morphology and phonology (e.g., the laryngeal theory), go unacknowledged, and he largely ignores Anatolian and Tocharian data.