(1) Papers concerning the granting of Royal Society Medals
W.J. Wharton's endorsement of S. Newcomb for the Copley Medal and Christie's approval of the award, 1889.
List of S. Newcomb's principal astronomical papers, 1889.
Statement by Christie in favour of S. Newcomb's claims for the Copley Medal, 1890.
Further list of important papers by S. Newcomb, 1890.
Christie's recommendation for a Royal Society Medal for A.W. Rücker, 1890.
Acknowledgement from H. Rix and requests for further details of the claim, 1890.
Statement by Christie in favour of A.W. Rücker's claim for a medal, 1890.
List of the principal papers of A.W. Rücker, 1890.
Candidates for Royal Society Medals, 1890.
(2) Papers concerning the catalogue index committee's classification of scientific groups
Proposal for further international co-operation regarding a catalogue of scientific works, 1893.
Report of the catalogue sub-committee, 1894.
Recommendations of the catalogue committee, 1894.
Responses of foreign scientific societies to a proposed international catalogue, 1894.
Report on the international catalogue committee, 1895.
Draft suggestions for the international catalogue, 1895.
Draft letters to the Foreign Office in favour of an international conference to discuss a scientific catalogue, 1895.
Belgian proposals for an international bibliography of science at Brussels, 1895.
Proposals, resolutions and agenda for a Royal Society meeting on the scientific catalogue, 1896.
Paper outlining the aims of the international conference to prepare a catalogue of scientific literature, with amendments, 1896.
Minutes of the Royal Astronomical Society's Catalogue Committee, 1896.
Useful art and natural sciences Dewey numbers.
Index slips to 'Philosophical Transactions'.
Explanation and thoughts on the Dewey system by H.E. Armstrong, 1896.
Invitation and resumé of the International Catalogue Conference, 1896.
Reports of the Royal Society's International Catalogue Committee, 1896, with the adopted principles of classification and the organisation to administer the catalogue.
Minutes and agenda of the Royal Society's International Catalogue Committee, 1897.
Postponement of an International Catalogue Committee meeting, 1898.
Notice of an International Catalogue Committee meeting, 1900.
Circular selling the International Catalogue of Scientific Literature, 1901.
Correspondence between Christie and J. Larmor regarding Professor Mitchie-Smith's complaint about the lack of instruments granted by the Observatories Committee for his Indian observations, 1902-1903.
Correspondence between Christie and J. Larmor regarding the Indian Observatories Committee, 1903. There are extracted minutes relating to the Observatory at Kodaikanal, the receipt of Bombay Observatory reports, a memorandum on the Kodaikanal Observatory by H.H. Turner, and Turner's views regarding the controversy.
(3) Draft lists and memoranda relating to Royal Society Committee business with regard to the International Catalogue, 1893-1896
Lists of countries, institutions and subscribers to receive the catalogue, 1893.
Royal Society Catalogue subject index and classification, 1896.
E.W. Maunder's views on Christie's scheme for classifying astronomy, 1896.