asked the Minister of Works whether, in view of the shortage of lead, he will encourage the use of wrought-iron piping with screw joints for housing work generally, seeing that it has proved satisfactory for 3o-storey and 40-storey skyscrapers.

Yes, Sir. Recommendations for the use of alternatives to lead in building work were published by my Department some months ago. I am sending the hon. Member a copy.

Is the Minister aware that wrought-iron is both quicker and cheaper and more efficient, and will he insist on it being used, instead of sending out recommendations which are not being carried out?

We have issued full instructions to the people concerned with strong recommendations.

Is the Minister aware that they are not being carried out and that people are wasting time and money?