Andre Langlois’s name is marked on the inside of this instruction book for the Bates Mill weaving machine. This detail reminds us of the contributions of thousands of individuals, like Langlois, who were key to the success of the Lewiston and Auburn mills. Weaving machines are complex pieces of equipment, making this reference guide a necessary tool for the people who operated and repaired them. The oil stains and fingerprints visible on the cover and pages testify that skilled hands frequently consulted this manual during the daily production process not so long ago.