The preparation of the special premises required by the Centre at these two sites entails an extensive works programme, the cost of which, together with the installation of the necessary scientific plant, is likely to exceed €400,000. It was learned in June last that it was proposed to construct an aerodrome at Bovingdon, approximately two miles north of the Centre's premises at Latimer House, with a satellite aerodrome at Holtspur, about one and a half miles west of the Centre's premises at Wilton Park and that work was already commencing on the former site, the war Department having given a "release".