Portfolio of result traces, summaries of results and notes relating to repetition by Boys of the 'Cavendish experiment'
Album, compiled and written, documenting the laying of the Durban-Mauritius and the Sierra Leone-Ascension submarine cables
Album documenting the laying of the first three stages of the Mauritius-Rodriguez-Cocos-Fremantle-Glenelg submarine cable
Photograph entitled 'T J Bennett Holding Framework of Large Trapezoidal Kite Approximately 14ft Long'
Photograph entitled 'Sir Hiram Maxim Holding Folded Paper Sheet to Illustrate Stability of Wing Configuration'
Drawing of Barry Dock Railway Ocean Coal Company Class F 0-6-0ST Nos 47-49; 70-72; 99-1043752 4'8 1/2" Gauge Locomotive