Ping-Pu-shih(_??__??__??_)of T'ang and Gumboryo(_??__??__??_)of Japan

Abstract

The Taiko-Bitsuryo (_??__??__??__??_) of Japan is generally held to be an imitation of the Lü-ling (_??__??_) of T'ang (_??_), but the Ko (_??_) and the Shih (_??_) of T'ang also were consulted in making it. This essay makes it clear that the Gumboryo (_??__??__??_) of Japan was modelled after a certain passage on rocket in the Ping-pu-shih (_??__??__??_) of the Kai-yüan (_??__??_) period of T'ang quoted in the Wu-chin.y-tsung-yao (_??__??__??__??_) which is included in the Ssu-k'u-ch'üan-shun-chen pen (_??__??__??__??__??__??_), studies the difference between the rocket systems of the two countries, and considers the reason why that difference had come into existence.