Air Raid Precautions

WHILE we appreciate the fulness of the treatment which has been accorded to our book " The Protection of the Public from Aerial Attack", we should be grateful for the opportunity of commenting on certain points in the review in NATURE of April 10, p. 606. Regarding the purpose of the book, General Foulkes says, " It suggests no better defensive measures than those recommended by the Home Office". Better methods are not lacking, and our object simply was to provide some scientific data concerning the proposed precautions-because no such data had been published and we felt that the unsupported statements of Government spokesmen concerning their efficiency were no substitute for scientific fact.