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 Vancouver-Fanning Island-Fiji sections of the Pacific submarine cable
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'