Reference numberMS/427/100
Alternative reference numberMS/427 p20
TitleCopy letter from [George Gabriel] Stokes, Secretary of the Royal Society; to Major [John] Herschel R.E. FRS
Date12 April 1881
DescriptionUpdates Major [John] Herschel on the findings of an investigation on whether it would be suitable to lend invariable pendulums to Mr. Pierce of the US Coast Geodetic Survey, as one was discovered to be damaged [See MS/427/94]. Informs the minutes of the Kew Committee of 1881 refer to 'a regrettable accident' , which refers to the bending of the tail. Also informs that General Walker and General Sabine had to reground the knife edges of both pendulums in 1864, before it was lent to the Indian Government. In an investigation into the conditions in which the pendulums were kept in the Exhibition of Scientific Instruments, the South Kensington Museum [now the Victoria and Albert and Science Museums] stated their display was safe and only Mr. [George] Whipple [of the Kew Committee] and a guest were seen handling them. Mr. Whipple, when asked about this stated the guest was Hershel himself. [George Gabriel] Stokes, on a visit to the Museum confirms the bent pendulum was not in a case. Concludes that the bending could not have happened in India, suggests minute alternations to the pendulums to improve results and approves lending them to Mr. Pierce.
Access statusOpen
Related records in the catalogueMS/427/94
Fellows associated with this archive
NA7955Herschel; John (1837 - 1921)1837 - 1921
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