NEW BRITAIN. Hartford County. - Form of government, mayor. common council.)-Town and borough, inc., May 1850; taken from Berlin. City inc.,1871. Town and City consolidated, April, 1905. Area, 13.4 sq. miles. Population, est., 70,948. Voting districts, 19. Principal industries, manufacture of builders' hardware, engineering firms, banking, hoists, mechanics' tools, etc. Transp.-Passenger: Served locally by buses of Dattco Inc., New Britain Transp. Co.. Inc., Bonanza Bus Lines. Inc., Conn. Transit and by Greyhound. Freight: Served by Conrail and numerous motor common carriers. Post office, New Britain.