132 Field Museum of Natural History — Anth., Vol. X. 



given in the Po hu Vung, the work of Pan Ku who died in 92 a. d.: 

 "What is round in the interior and provided with teeth outside, 



Fig. 40. 



Jade Tubes, huang Is'ung. 



Fig. so. 



is called a ts'ung." Now the six raised rectangles which appear 

 in the upper and lower part at each corner in the first yellow ts'ung 



amusing to observe that even a scholar of the mould of Wu Ta-ch'eng did not un- 

 derstand the meaning of the expression pa fang "eight sides" referring to the really 

 existing eight corners or eight triangular sides around the openings of this object 

 which, according to the commentary of the Chou li, symbolize the earth. Alluding 

 to this statement, our author remarks that all ts'ung existing at present have only 

 four sides, and that it is therefore not appropriate to speak of eight sides; and in 

 another passage, he regrets that he has not yet seen the octagonal ones. 



