Kita Ezo Zusetsu, dictated by Mamiya Rinz? (1775-1844). 4 vols, published in Tokyo, 1855.

Commissioned by the Shogunte government (Bakufu), Mamiya Rinz? traveled to northern Sakhalin and established as a fact, for the first time in history, that Sakhalin was an island, not a part of the Asian continent.

He produced valuable maps and geographic, topographic and climatic information of Sakhalin as well descriptions of the daily lives of the Sakhalin Ainu, Oroks, Nivkhs (also known as Gilyaks) , including their economic activities, customs, and the individuals.