Rhomboidal coal (commonly called dice coal), in contradistinction to coals which do not break in rhombs.

(initialism)

Ts'ai Ch'ien 蔡乾 was born in 1908 in Changhua near Taichung, Taiwan (Formosa). His father was an accountant in a rice shop and a descendant of the three hundred Fukienese families who went to Taiwan with Koxinga, who led a rebellion there against the Manchus. At the age of six Ts'ai Ch'ien entered primary school, studied Japanese, and graduated after eight years. He taught at the same school, in Changhua, for one year. In 1924 he came to Shanghai, financed partly by his father and partly by the Chinese Cultural Association of Taiwan. He attended Shanghai University, where Yü Yu-jen was president, in 1924-25.

On what would once have been the front lawn there is now a prefabricated hut and a portaloo.