On The Vowel, Its Nature and Structure and related works by Chiba and Kajiyama(<Feature Articles>Sixtieth Anniversary of the Publication of The Vowel, Its Nature and Structure by Chiba and Kajiyama)

Abstract

This paper describes how the experimental study published as Chiba and Kajiyama's The Vowel, Its Nature and Structure was conducted in pre-war Japan. Human, institutional, and instrumental environments of the study were investigated based upon various documents, including newly found laboratory notes written by Masato Kajiyama. Survey of the early citations of The Vowel, both in home and abroad, was also reported.