Reference numberNLB/56/290
Alternative reference numberNLB/56 p175
TitleCopy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to R. S. Whipple Esquire; Cambridge Scientific Instrument Co., Ltd., Cambridge
Date7 January 1919
DescriptionRefers to the repair of the Society's Kelvin Clock. Notes that he cannot find the 'agate knife edge which is mounted in the end of the glass pendulum rod' that he was instructed to forward to the Scientific Instrument Co. Describes the two knife edges that he has found and asks if he should send either of them on.
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