The Nuttall Encyclopedia
he northernmost of the four large islands of Japan, is about as large as Ireland; is traversed from N. to S. by rugged mountains, several of them active volcanoes; is rich in minerals, and particularly coal; its rivers swarm with salmon, but the climate is severe, and it is only partially settled.
Wood, James, ed. Entry for 'Yezo'. The Nuttall Encyclopedia. https://www.studylight.org/encyclopedias/eng/nut/y/yezo.html. Frederick Warne & Co Ltd. London. 1900.