Professor Hosaka, a naturalized Japanese-Korean, who falesly claims finding the evidences of Japan's so-called renouncement of Takeshima/Dokdo did it again. Despite of his efforts, all he had found so-far only makes him doubtful as a decent scholar.
This time, he claims that the map called 「新撰朝鮮全図(Newly Made Whole Map of Chosun Country) 」 (1894) by Japanese civilian 田中紹祥 is a proof that Japan recognized Takeshima/Dokdo as Korean territory.
Notice that the lines are neither latitude nor longitude. In this map, vertical lines are numbered, from right to left, as 8, 9, 10, 11,… in Chinese characters (八, 九, 十, 十一,…), and horizontal lines are numbered, from bottom to top, as 32, 33, 34, 35,… (三十二, 三十三, 三十四, 三十五,…). Since lines are drawn in equal spacing for both vertical lines and horizontal lines, the grids form squares in this map. The positions of the lines correspond to neither longitude nor latitude used in canonical maps. ( explained by Aki here.) If you see the location of Tsushima, you will instantly notice that those lines are not longitude nor latitude in fact. (Update : The lines of the map seems to be incorrect longitude lines, which was not drawn in east longitude based on the Greenwich point but it was drawn in west longitude based on the Japanese standard point at Azabu, Tokyo (139 degree 44' 28" E). Read more.)
The so-called Matsushima locates on the line from Tomangan River and to Kokura, Kitakyushu on the map. It's definately Ulleundo=Daglet as you can see on the modern map below, and Takeshima on that map is non-existant Argonaut apparentrly. It only shows that Japanese are still confused of the two islands(Argonaut=Takeshima, Daglet=Matsushima=Ulleundo), and also that Japanese excluded today's Takeshima/Liancourt Rocks/Dokdo from this map of Whole Choson.
It is well-known that Japanese in Meiji called Ulleundo as Matsushima which they used to call Takeshima/Dokdo and Takeshima as well. It explains why Meiji Government used the expression "other island" in Dajoukan order in 1877 which excluded "Takeshima and other island" which has no name on it. This "other island" is apparently this Matsushima (Ulleundo) or Jukdo which was labelled as "Mano-shima" on the map attached to the order, which has no record in Japanese documents.
I understand Korean desperately feel like doing "something" since it's a Takeshima Day in Japan. But professor, this is too shabby. I sincerely hope intelligent Koreans will not be fooled by his tactics.
Surely you are joking, Prof. Hosaka !
Ref : “独島＝韓国の領土”立証する日本古地図発見…保坂祐二教授 その① ②(Japanese)
Other maps which Prof. Hosaka falesly insists Ulleundo=Daglet=Matsushima as Takeshima/Dokdo.
鈴木敬作「朝鮮國全圖」(1882) , 大須賀龍潭「大日本全圖」(1883)