Lewis's place was midway on the bench on the decani side, seven boys being above him and seven below him.
The north side is in consequence the decani side, and the Cantoris side is on the south.
Each sign of the Zodiac was considered to have three decani, occurring at intervals of ten days.
In this kingdom of decani there are many great cities, and many other towns within the country inhabited by Moors and Gentiles.
It appears, however, that the Egyptian astronomer divided the zodiac into twenty-four decani, or constellations.