Copy letter from Sir Ernest Rutherford, President of the Royal Society; to Sir Walter [Morley] Fletcher, FRS Agrees with Sir Walter [Morley] Fletcher's suggestions of who should fill the vancancies at the Medical Research Council. Prof. [Charles James] Martin will replace the late Sir William Leishman and Sir Frederick [Gowland] Hopkins to replace the retiring Prof. [Thomas Renton] Elliott. 23 July 1926