Shipbuilding. "Liberty" ships. Welding is one of the most important advances in shipbuilding during the present century, with the resulting in immense savings in time, material and weight in the building of ships. This welder is joining side plates to angle frames forming sections of the propeller shaft tunnels on a new member of Uncle Sam's "Liberty Fleet," under construction at a large Eastern shipyard. All parts are prefabricated in this huge Eastern plant which formerly turned out freight cars. The completed sections are then carried six miles to the ways on flat cars. Bethlehem-Fairfield Shipyards Inc., Baltimore, Maryland