There are numerous chemical and other manufactures which have been removed from London itself; and the large population can also be traced in part to the foundation of the Victoria and Albert docks at Plaistow.
Four graving docks were also formed, opening out of the first (Upnor) basin.
The government possesses dry docks at Rio de Janeiro.
Two government dry docks are available for merchant vessels.
Long leading to a tidal harbour and docks capable of receiving ships drawing 26 ft.