CONTENTS R. B. Ball, assistant chief engineer of the Santa Fe System.. A. K. Barta, assistant to general counsel American Transit Associa- Julius H. Parmelee, director of the Bureau of Railway Economics of the Association of American Railroads, Washington, D. C.. S. Abbot Maginnis, representing the American Short Line Railroad Timothy Shea, assistant president Brotherhood of Locomotive Fire- 65 III |