Shen Collection, Upper Volume Radical: Grass (cǎo) 藪 Kangxi strokes: 21 Page 1066, Entry 07 Tang Rhyme (Tangyun) and Collected Rhymes (Jiyun) state it is pronounced sou (rising tone). Book of Rites (Erya), Interpretation of Geography: Ten marshes. Commentary: Large marshes. Rites of Zhou (Zhouli), Offices of Heaven, Grand Administrator: Marsh pastures serve to raise and protect birds and beasts. Popular Customs (Fengsutong): The term marsh implies thickness or abundance. Because they contain grass, trees, fish, and turtles, they are able to enrich and nurture the people. Book of Odes (Shijing), Odes of Zheng: The uncle is in the marsh. Also, according to Tang Rhyme Ancient Sounds (Tangyun guyin), it is pronounced shu (falling tone). Forest of Changes (Yilin): Mountain forests and lowland marshes are not places where people dwell. Also, Collected Rhymes (Jiyun), citing the Book of Etiquette and Ceremonial (Yili): Sixteen dou (a unit of measure) is called a sou. Or written with the grass radical. Also, Collected Rhymes and Notes (Yunhui): A jusu is a pad used for balancing objects on the head. Commentary on the Biography of Dongfang Shuo in the Book of Han (Qianhan): When using a basin to carry items on one's head, a jusu is used as a cushion. Su Lin says: The word is pronounced like the word for counting money (shu). Also, Collected Rhymes: Pronounced cou (falling tone). Rites of Zhou (Zhouli), Winter Offices, Wheelwright: Use its circumference to measure the hollow. Commentary: It is pronounced like the sou in the phrase bee colony (fengsou), referring to the hollow, pot-shaped part of a wheel hub. Bee colony refers to a place where many spokes gather. Sou refers to the place where the many spokes of a wheel converge.