ary to President Sun Yat-sen. After a permanent government was established in Peking, he became Director of the Cadastral Department in the Ministry of the Interior. In 1913 upon the recommendation of the Ministry of Education Mr. Kao was appointed Director of the Government Observatory in Peking. In that capacity he introduced scientific methods regarding operation and also publications of the observations. Since his time the Observatory has been publishing a Year Book and a monthly meterological magazine. In 1920 Mr. Kao again visited Europe to study the progress of modern science. Subsequently the Ministry of Education appointed him Director of the Educational Mission in Europa. In February 1921 Mr. Kao received the Second Class Pao-Kuang Chiaho. In February 1922 he was recalled to China and resumed the directorships of the Peking Observatory, which position he is still holding. Mr. Kao is president of the Chinese Astromomical Institution; and author of The Principle of Einstein's Theory of Relativity, and Absolute Integral Calculus.
