Portfolio of result traces, summaries of results and notes relating to repetition by Boys of the 'Cavendish experiment'
5 items Photographs of engines and air compressors, built by Maudslay, Sons & Field, London for HMS Blake, Royal Arthur and Sirius and Italian ship Re Umberto
4 items Printed material relating to the promotion of Harry Lawson's British Motor Syndicate Ltd and criticism of Lawson's schemes by Sir David Salomons
A collection of glass lantern slides capturing the development of flight from an early set of images from the 1909 aviation meeting held at Reims, France through to images of aircraft from Imperial Airways and flying boats in the late Thirties. The History of Aircraft and Flying
445 Printed advertisement entitled: "A Remarkable Opportunity for Amateur Astronomers. Sale of Mr. With's choicest reserves of silvered glass specula for Newtonian telescopes"
240 Trade Catalogue Gold & Silver Plant, by Geo. Heaton Daglish C.E. & M.E., and as manufactured by Daglish & Co., St. Helen's Engine, Boiler, Bridge Works & Foundry, Lancashire
7 sheets with 12 manuscript pages Description of, and plans for, proposed ventilating arrangements for ship 'Immortalite'
3 items Original sketches of the apparatus used by C. Vernon Boys in his repetition of the "Cavendish Experiment"
105 Portrait photograph of Professor John Hopkinson, Professor Wilson and senior students at King's College, London