§ 84. Sir G. Harvie-Wattasked the Minister of Health if he is aware that the asbestos cement flue pipes which were incorporated in the Unity-type permanent prefabricated houses recommended by his Department for use by local authorities have proved to be dangerous and their continued existence in such houses, on account of the number of fires which have taken place as a result, is causing concern; and what steps he proposes to take in this matter.