| Description | In response to Callendar's letter of 21 March, Harrison believes the Committee have no intention of insisting that he have the Indicator Diagrams of a Motor running the whole evening. He suggests arranging for it to be turned on for two or three brief periods in the evening, in a separate room due to the noise, in a similar manner to Duddell's oscillograph. He further suggests that Callendar might make it available to be moved, in case one of the meeting room demonstrations falls through, though the former plan is his preference. |