Correspondence comprising:
- letter from Brady re Dover boring core samples, January 1891.
- letter from Mr Sheath of Tunnel Co re samples for exhibition, January 1892.
- letter from Brady re specimens, February 1892.
- 2 letters from Col. Foster re pamphlets for French engineer, June 1892.
- letter from Mr Whitaker re Kent Coal Prospectus, June 1892.