Yin Collection, Lower Volume Radical: Wide (guǎng) Page 345, Entry 01 Pronounced ci (falling tone) Jade Chapters (Yupian): A farming tool. Sound Compilation (Jiyun): The forked wood at the bottom of a plow handle. Rites of Zhou (Zhouli), Winter Officials, Artificers' Record (Kaogongji): When the carriage maker makes a plow handle, the forked piece is one foot and one inch long. Commentary: Zheng Sinong says the forked piece is the bottom of the plow. Kangcheng says the forked piece is the part where the front curve of the plow connects to the spade. Sub-commentary: The forked piece is the face of the plow, shaped like the curved handle of a modern spade; the face is one foot and one inch long. According to ancient methods, the bottom of the plow had only one metal part and was not forked. The earlier Zheng says the bottom of the plow is forked, referring to the methods of the Han dynasty. Kangcheng says the part where the front curve of the plow connects to the spade, referring to the metal head of the plow, hence it is called the part where the front curve connects to the spade. Also categorized in Categories Compilation (Leipian): Pronounced ci (level tone), with the same meaning. Sound Compilation (Jiyun): Sometimes written in a variant form.