colour affinity is yellow. In man it is will which focuses energy and concentrates it to a burning-point for the accomplishing of desire. Its form symbol is 
representing a vortex or spiral movement inward, opposing in this the expansion or radiation implied in the root L.
The root which follows Y is W, the sound symbol of liquidity or water. Its form is semilunar, 
, and I think its colour is green.
We have now descended to earth and with this descent comes dualism, and henceforth all the roots have companion roots. Primordial substance has lost its ethereal character and has settled into a solid or static condition. The two roots which express this are G and K; G is the symbol of earth, as K is of mineral, rock, crystal or hardness of any kind. I could discover with no certainty any colour affinities for either of these roots, and about the forms I am also uncertain though I was moved to relate G with the square 
and K with the square crossed by a diagonal 
.
The twin roots next in the series are S and Z, and I can find no better words to indicate the significance of the first than
