Box containing seven folders/books of letters and documents:

- one book of patents titled 'Steam drawing office book 1852 - 1894.
- one book containing the dimensions of sails.
- one book containing a report on the steam navy.
- one book containing documents refering to warship design.
- one folder of designs for steam sloops including weight calculations.
- one folder of fittings for 'Blenheim'.
- one bundle of loose papers of metacentric heights of warships.