Letters between L H Gray and J B S Haldane Letters between L H Gray, Secretary of the Committee on the Medical and Biological Applications of Nuclear Physics, and J B S Haldane regarding Haldane's criticism of D G Catcheside's reports for the Tolerance Doses Panel. Gray's letter of 6 July 1950 encloses Catcheside's three reports. Haldane's letter of 8 July 1950 encloses his comments on Catcheside's reports. This item also includes handwritten drafts of Haldane's letters to Gray and Catcheside, and a letter from Haldane to Catcheside informing him of his intention to submit comments on the reports. Jul 1950