1911 Encyclopædia Britannica, Volume 20… (1911)
“ The manufacture of beetroot-sugar, oil and alcohol distilling, iron-working, dyeing, brewing, paper-making, and various branches of the textile manufacture, are foremost among the industries of the department. Boulogne, Calais and fitaples fit out a considerable number of vessels for the cod, herring and mackerel fisheries. Calais and Boulogne are important ports of passenger-transit for England; and Boulogne also carries on a large export trade in the products of the department. ”
