蔡翔　字仪亭。年二十七岁。生于汉口。父中藩。本籍通信处。湖北汉川县二铺街蔡寓。未婚。初学武昌文华书院。及北京淸华学校。宣统三年。以官费游美。入科罗拉多矿业学校。习矿业工程。民国四年。得矿工程师学位。入哥仑比亚大学。习冶金科。为美国矿工程师会会员。在科罗拉多矿业公司。充测量师。又在金环矿业公司。充副工程师。民国五年回国。

tsai, hsiang.-born in hankow, hupeh, 1890. studied at boone college, wuchang, 1906-10; at tsing hua college, peking, 1911. arrived in

america, september, 1911. government support. studied mining engineer-ing at colorado school of mines, 1911-15: metallurgy at columbia university, 1915-16. e.m., 1915. member, american institute of mining engineers, 1915. surveyor, colorado mining co., summer, 1914. assistant engineer, golden cycle mining co., summer, 1915. returned to china, august, 1916.