From the Study Note of a History of Japanese Interior Round Tip and Shomei Five Volumes

Rout Tip. Traditional Japaneses Round Tip is made of Japandse Cyprese and Cedar, but Pine in Hokkaido. ThePine is called "Yeddo Spruce", which is cut down from the primeval forest of the age before the exploitation of Hokkaido. As compared with traditional Round Tip, the peculiarity of Hokkaido one is its large size. In present Hokkaido, plastic tape is used for binding Round Tip as its material. After the trials of using various materials, the writer found the most suitable material the root of Dahurian Larch, which was used for the craftwork of the oronchon sagh a lien. The growing district of Dahurian Larch is Saghalien, but the wood of this tree was found in a small area near Rubeshibe Cho. Shomei Five Volumes. "Shomei" is the module of traditional Japanese residence. It was written in 1607,the age of Civil War of Japan. At the same time, the period was the golden age of the Momoyama era, that was called the Renaissance of Japan. The author of this volume, Yoshimasa Heinouchi and his son Masanobu. They were the founders of master builder of Heinouchi style, not only built excellent buildings in every part of Japan during Civil War, but also leaved Makimono (the volumes) "Shomei" which was handed down from father to son. The volumes were transcribed by Masakitsu Oshima in 1898. It seems to the writer that Masakitsu Oshima is an alias of Mitsukabu Oshima. Mitsukabu Oshima is the descendant of master builder of Kora style. He built the first Japanese railway stations Shin-bashi and Yokahama with the British Bridgens. Mitsukabu Oshima of Kora style transcribed the mystery of Heinouchi style the opposite one.