Letter from the Secretary of the Protection Sub-Committee to J B S Haldane Letter from W Binks, Secretary of the Protection Sub-Committee, to J B S Haldane enclosing a copy of Professor Mitchell's Memorandum "Some aspects of the biological action of radiations, with specific reference to tolerance problems" [enclosure since separated]. Letter is annotated by Haldane to show the date of reply, and to inform Binks that the envelope was so torn on arrival that the contents were visible. [Apr] 1946