Distinctive Effects of the Deficiency of Certain Essential Elements on the Growth of Tobacco Plants in Solution Cultures by John William Roberts, Milton Henry Fohrman, Thompson Elwyn Woodward, R. W. Leukel, William John Nolan, Arthur Koehler, John Brown Cuno, John Clymer Dunegan, Charles Walter Collins, Hazel Katherine Stiebeling, Aaron Francis Bracken, Joshua John Skinner, Willis James Nolan, R. R. Graves, Herbert Dwight Smith, John Holmes Martin, John Robert Magness, Mark Hughlin Haller, Edward Coit Peck, David Edmund Stephens, Ernest Bateman, George William Trayer, James Edward McMurtrey, John Guice Sutton, Joseph Clarence Silver, Ralph Lester Miller, Raymond Secord Washburn, T. D. Jarrell, Walter M. Osborn, William Henry Fry, William Jasper Spillman, Carrington Bonsor Williams, Hazel Edith Munsell, Henry Morris Wanser, Ione P. Bassett, James Geere Dickson, James McKenzie Hankins, Samuel Frederick Potts, Aaron Guy Johnson, Fletcher Pearre Veitch, Harvey Blount Mann, William Walter Yothers