editor, James F. Shackelford ; associate editor, William Alexander. editor, James F. Shackelford ; associate editor, William Alexander ; assistant editor, Jun S. Park. editor, James N. Levitt ; assistant editor, Lydia K. Bergen. editor, Robert C. Weast ; associate editor, Melvin J. Astle. editor, James Vinson ; associate editor, D. L. Kirkpatrick. editor, James Vinson ; associate editor, D.L. Kirkpatrick. executive editor, John J. McKetta ; associate editor, William A. Cunningham. executive editor, John J. McKetta ; Associate editor, William A. Cunningham. Editor, Allen J. Johnson; associate editor, George H. Auth. editor W.J. Schlitt ; associate editor: J.B. Hiskey.