Album documenting the laying of the first three stages of the Mauritius-Rodriguez-Cocos-Fremantle-Glenelg submarine cable
Notebook containing records with details of meetings and discussions, patent filing, progress wth patent application and manufacture of instruments
Album, compiled and written, documenting the laying of the Durban-Mauritius and the Sierra Leone-Ascension submarine cables
Patent for "Improvements in or relating to valve gears for engines worked by fluid pressure" by Harold Holcroft