1. By-laws of the Middlesex North District Medical Society: adopted April 28, 1880, with a list of fellows and the code of ethics Author(s): Middlesex North District Medical Society (Middlesex County, Mass.), author. Publication: Lowell, Mass. : Stone, Bacheller & Livingston, 1880 Subject(s): Societies, Medical -- organization & administrationConstitution and BylawsCodes of EthicsMassachusettsMiddlesex North District Medical Society (Middlesex County, Mass.)