The word, "So" = horse, will therefore still remain, and may perhaps stand in the same relation to the "water" celebration, that the "bull" does to the Mandan celebration of the Deluge. Captain Burton, for instance, tells us (ii. 15), a "So" was brought up to us (on the fourth day of the So-sin custom, and on the fourth day of the Mandan custom "the bull-dance" was performed sixteen times round "the big canoe"); but I will place the two descriptions side by side. CAPTAIN BURTON, ii. 15. "A 'So' was brought up to us, a _bull-face mask_ of natural size, painted black, with glaring eyes and _peep-holes_, the horns were hung with _red_ and _white_ rag _strips_, and beneath was a dress of bamboo fibre covering the feet, and ruddy at the ends. It danced with head on one side and swayed itself about, to the great amusement of the people." _Vide_ also p. 93, "Four tall men singularly dressed, and with bullocks' tails," &c. MR CATLIN, p. 16. "The chief actors in these strange scenes (bull-dance) were eight men, with the entire skins of buffaloes thrown over them, enabling them closely to imitate the appearance and motions of those animals, as the bodies were kept in as horizontal a position, the horns and tails of the animals remaining on the skins, and the skins of the animals' heads served as _masks_ through the eyes of which the _dancers were looking_." The legs of the dancers were painted _red_ and _white_" (plate 6.) If we might (on the strength of so many words of primary necessity being in common) connect "So" = horse, with the Saxon "soc" or plough (as in the soc and service tenure), we could then see a way in which the same word might apply indifferently to ox or horse; and we would, moreover, see through the common relation to Noah how the water ceremony came to be associated with the worship of Ceres in the mysteries of Eleusis. _Vide_ Boulanger, i. 70-107.[214]