Introduction; 1. The rise of the great industries of Western Europe; i. Iron and Steel; ii. Engineering; iii. Coal; iv. Textiles; v. Chemicals; 2. An eighteenth century approach. The Anglo-French Commercial Treaty of 1786; 3. International co-operation in the nineteenth century; i. Slave trade; ii. Opium trade; iii. Arms and liquor; iv. Fisheries; v. Sugar; vi. Agriculture; vii. Currencies and Gold Standard; viii. Health; ix. Communications; x. International Cartels; 5. Customs unions in the nineteenth century; i. National Common Markets; ii. The German Customs Unions; 6. International co-operation after two World Wars; i. 1919-1939; ii. 1945-50; 7. The Genesis of the Common Market; i. The Coal and Steel Community; ii. The Economic Community