Copy letter from Joseph Larmor, to Dr Augustus Desire Waller, Fellow of the Royal Society Larmor notes Waller is their expert on the matter of the physiological galvanometer and Larmor is not, so that matter is in Waller's hands. In Larmor's experience it is very unlikely that physicists would want to use a galvanometer during the reading of a paper. Larmor thinks the case for a permanent installation must be made by the physiologists themselves. 20 December 1901