Paleographical study for reverse-side writings in the back of fragmentary leaves of old codex

在本研究项目中，申请人使用了自江户时代以来在旧文字方面的传统中创建的“叶册”中放置的旧抄本，文件或日记的碎片作为研究资源，并关注了存在于叶子背面的文字。通过查阅原文和复印件，全面收集实例，将叶背纹饰分为原生纹饰和次生纹饰。显然，古文字学中使用的“反面文献”概念是可以应用的，这也是研究幸存树叶历史传播的新方法的一些关键。

In this research project, The applicant used the fragmentary leaves of old codex, documents or diaries put on "leaf albums" created in the tradition of the old-writings respect since the Edo period as resource for study, and have paid attention to writings existing in the back of of the leaves. The examples were comprehensively collected with reference to the original articles and the duplicates.Writings on back of leaves are grouped to primary used ones and secondary ones. It has become clear that he concept of the "reverse-side document" used in paleography is able to be applied, and some keys to a new method for studying historical transmission of surviving leaves.