Annual acknowledgements for instruments on loan from the Royal Observatory, including the following items:

Correspondence on the transfer of the Herschel 6-inch and 9-inch telescopes to Professor Fox of Chicago, 1929.

Correspondence on the loan of the Cooke Equatorial to the Radcliffe Observatory, Pretoria, 1929.

Correspondence on the loan of magnetic instruments to the National Committee for the Polar Year for use at Fort Rae during the International Polar Year, 1931.

Correspondence on Dent No. 2016, a Hilger Chronograph and a Lindqvist Chronograph lent to the Signals Experimental Establishment, Woolwich Common, 1919.

Report on 'Experiment 378, Recording of Eiffel Tower Time Signals to determine Chronometer Error', prepared by the Signals Experimental Establishment, Woolwich, 1919, including a photograph of the Lindqvist Electric Chronograph No. 6 and a photograph of the Turner Valve Relay No. 2 wireless equipment.