I am commanded by my Lords Commissioners of the Admiralty to send you herewith for
               the information of Her Majesty’s Secretary of State for Colonial Affairs, an Extract
               from a letter dated the 
27th August last, N
o 120, from 
Rear Adml Baynes reporting the arrival at 
Vancouver's Island of the Detachment of Sappers & Miners to be employed in the Survey of the Land portion
               of the 
Oregon Boundary.