In order to consider and discuss how and what to teach in the high school education of English, vocabulary lists will be necessary as the fundamental material for discussion. No vocabulary list of English Composition textbooks, however, has appeared though a great many have been tried about English Readers. We have here taken up five kinds of textbooks (15 volumes) and made the lists of the words and phrases included in them. Those lists, we hope, will reveal many suggestive facts about the character of English Composition textbooks, and eventually will lead to some clues to improve teaching methods and materials in high school English classes in our country.