Correspondence with the Board of Trade concerning the custodianship of standards, 1877.

Correspondence with H.W. Chisholm, Warden of Standards, 1877.

Letter from the Board of Trade concerning arrangements for viewing the weights room, 1877.

Copy of the Weights and Measures Bill of 1878, with the Astronomer Royal's comments, 1878.

Correspondence with the Board of Trade concerning the Weights and Measures Bill, 1878.

Correspondence with G.G. Stokes, Royal Society, 1878.

Correspondence with the Board of Trade regarding the standard foot measure and requesting that a standard yard be delivered to the Board of Trade Office for comparison, with correspondence regarding their return to the Royal Observatory, 1878-1882.

Remarks by British delegates and the committee on the report of delegates to the Geodetic Conference in Rome, 1883.

Letter to the Secretary, Science and Art Department, containing a report on the Rome conference, 1883.

Details of contributions to international weights and measures bureaus, 1876-1884 inclusive, compiled 1884.

Correspondence with W. Foerster of Berlin concerning the Board of Trade's wishes to compare international standards, 1884.

Letter from the Board of Trade, with copies of the annual report, 1887.

Correspondence regarding the ten-yearly comparison of weights and measures, 1891.

Correspondence concerning repairs to the Royal Observatory's copies of the standards, 1893.

Undated exercise book containing notes on P1 Standards, 1855-1912.

Comparison of standards, 1901.

Comparison of standards, 1911.

Comparison of standards, 1922.

Comparison of standards, 1932.

Correspondence with the Board of Trade regarding the repair of standards affixed to the Royal Observatory wall, 1910-1911.