Show government arsenal aaring guns watertown mass march 12 the U 3 arsenal here which for many years has been exclusively a factory for the production of eun carriages and their equipment and for sun implements and cf cea coast projectiles has cone into gun manufacture work on the first forged run ever ordered at watertown was begun yesterday the weapon is to be a three and six tenths breech boadine field mortar iti carriage carri aee will also be made at the arsenal the new undertaking at watertown results from the opinion of the ordnance department at washington that the Ro has been paying too much money for mortars manufactured by private establishments lish ments |