出版社：Japan Science and Technology Information Aggregator, Electronic
摘要：Monguor and Dagur are known as the languages which stand in isolated positions from the other Mongol languages and dialects. I have been planning for a long time to compare the Mongol languages from the glottochronological view-point. Recently I have tried the comparison in terms of Swadesh's 200-item list (See the Journal of the Linguistic Society of Japan, Nos. 26/27, p.72f.), and obtained the following figures (the percentages of the residual cognates). The figures clearly show that Dagur, Monguor, and the group of the other dialects are considerably remote from each other. Although we are not yet in the situation to compute the exact time-depth, I think it is probable that Monguor was separated from the other dialects before the 13th century.
