Minutes of meeting of the Solar Physics Committee, 1879-1913.

Correspondence concerning the Solar Physics Committee, 1911-1912, including an invitation for F.W. Dyson to join.

Notices of meetings and agenda, 1889-1913.

Correspondence concerning the supply of copies of Greenwich photoheliographic results to the Solar Physics Committee, 1904-1909.

Correspondence, minutes of meetings and general papers relating to the Solar Physics Committee and the change of site of the Solar Physics Observatory, 1911, including a copy of 'Nature', Vol. 85, pp. 373-378, 19 January 1911; proofs of evidence given by witnesses at an enquiry on the change of site; minutes of Committee meetings, April-June 1911; report of the weather conditions at Fosterdown, with reports from local residents; comparisons between Fosterdown and Cambridge; and the final report of the Committee (Cmnd 5924).