伊能特小図と特殊中図

抄録

1) The late Prof. S. Ayusawa of Yokohama Municipal University, an eminent historical geographer, died in 1964, kept a manuscript copy of Inô's map of special small-scale (1.864, 000) and presented it to his intimate colleague, Prof. Y. Kagose, as the memento immediately before his death. The author has been given an opportunity to examine carefully the map and revealed and proved that this was the original source of the maps of Japan which Von Siebold had, with conspicuous features such as simplified for a foreigner to get the general view of Japan as well as place-names were written in katakana (the square form of the Japanese syllabary) instead of kanji (Chinese characters), presented secretly by K. Takahashi Sakuzayemon, an excellent official of the astronomical observatory and the supervisor of the completion of Inô's maps of the entire country, in 1827. Von Siebold failed to smuggle them out and deprived of them by the Tokugawa Government. Today these maps are kept in the National Diet Library. The author's conclusion is based on cartographical comparison and analysis of the two kinds of maps mentioned above.
2) The Library of Gakushuin University in Tokyo received recently a gift from Mr. Y. Hori, a former teacher of geography, of a series of Ino's manuscript maps of middle-scale (1: 216, 000), which contain nearly half of Ino's entire surveyed routes, i. e. his survey of 1800 to 1809. Maps provide abundant information along the Ino's routes with extraordinary small characters and compete actually with Ino's maps of large-scale (1: 36, 000) in their content. No documents are left which tell that such a kind of middle-scale maps were made and no one has ever reported about the existence of such maps. They were probably made trially by an expert of writing small characters in the Edo period, without presenting them to the Tokugawa Government.