asked the Secretary of State for Scotland what recent investigations he has made into the possibility of generating electricity in Scotland from either tidal or wind power; and if he will make a statement.

While every possible source which might contribute significantly to supplies of energy should clearly be examined, recent reviews suggest that these particular methods of electricity generation are not at present a practical proposition for public electricity supply. The Scottish electricity boards concur.

May I ask my right hon. Friend how recently these investigations have been made? The increase in price of energy generated from coal and oil is such that I believe that we should be well advised to reconsider alternative ways of generating power.

I agree that these researches have been taking place in recent years and not in recent months. The situation that we face at the moment is such that any possible new source of energy should be examined.

What assessment has been made of the further potential of hydro-electricity?

That is another matter which has been examined and which will be examined again if it seems practicable.

Will the Secretary of State confirm that both wind power and a barrage are more practicable than the Liberal proposal of a Channel dam?

I noted the speech by a Liberal Member——

The Liberal spokesman.

—which I understand could have resulted in disastrous flooding of not only this country but others as well. The difficulties which have been met in considering barrages also involve serious questions of flooding and drainage.

Mr. Gourlay.

rose——

On a point of order, Mr. Speaker. In view of the unsatisfactory nature of my right hon. Friend's replies, I beg to give notice that I shall seek to raise this matter on the Adjournment at an early opportunity.