asked the Under-Secretary of State to the Air Ministry whether his attention has been drawn to the injustice which has been shown to the members of the Building Workers' Industrial Union by Messrs. Matthew and Son at Halton Camp, who have discharged all the members of this union in contradiction to the orders issued by the Air Ministry; whether the contractors have reinstated any members of this union who have left the union to join a craft union; and whether he will at once take steps to remedy this state of affairs and to see that the union affected is treated on equal terms with any other trade union?