He learned to frame his case from putting riddles and imitating Merlin's prophecies, and to set all the Cross Row together by the ears; yet his whole law is not able to decide Lucan's one old controversy betwixt Tau and Sigma.

After some controversy eagles are being encouraged to increase, having been almost exterminated.

There a ferocious controversy rages over what is known as the principle of "equal pay for equal work."