Damming the flood: British government efforts to check the outflow of technicians and machinery, 1780-1843 -- British and American yarn count systems: an historical analysis -- British and American entreprepreneurial values in the early nineteenth century: a parting of ways? -- British textile technology transmission to the United States: the Philadelphia region experience, 1770-1820 -- Immigrant textile machine makers along with Brandywine 1810-1820 -- Transatlantic industrial espionage in the early nineteenth century: barriers and penetrations -- Invention in American textile technology during the early nineteenth century, 1790-1830 -- Innovation in American textile technology during the early nineteenth century -- Technological diffusion: the case of the differential gear -- Cotton mills in developing regions, 1820-1840: Massachusetts and some comparison with Lancashire.