Heats and Free Energies of Formation of Vanadium Nitride and Vanadium Carbide by L. B. Pankratz, Lowell Stroud, Raymond W. Hiteshue, James H. Gary, Ernst K. Kleespies, Murphy E. Hawkins, Thomas A. Henrie, Vernon F. Swanson, William C. Miller, Ignatz L. Feld, D. H. Baker, William Jefferson Boone, Edward Gerard King, Will E. DeVaney, Robert Lynn Crosby, David J. Kusler, Richard F. Hewlett, Alla D. Mah, K. A. Fowler, Edwin E. Maust, Walter Kawa, Albert J. Rambosek, Edward George Davis, George T. Krempasky, Laird Crocker, Sara Jane Boles, James B. Williams, O. W. Jones, Cynthia A. Pearson