《历史语言研究所集刊》第4册_第2分册_国立中央研究院历史语言研究所集刊
本刊辑委員會 傅斯年(主席)陈寅恪 趟元任 李 濟 羅常培(常務)
Yao2 I Ⅱ I,V V IV V I V is Canton I II IV IV,VI V VI shortlong VIIVIII IX Foo- chow I II I V IV V VII Soochow I II IⅡI Coll.Lit.V v IV V VI!VII Han- Changaha I I II Ⅱ ⅢI III Coll.Lit.V IV IV IV< II VI Itwillbe noted that besides theoriginal tonal categories,what influencedthemoderntonesmostare
Y.R.Chao dialect,there is notmuchroomfor choice.Butifwetake a neighboring dialect,thatofChangsha,wefindthatits平and陽平arecloselysimilar while inaddition Changshahasa入class distinct from allother classes.Itisthereforemoreconvenientforustocallthisquestionableclassof Wuchang陽平 rather than 入. 
