- Waksman, Selman A. (Selman Abraham), 1888-1973 (3)
- Curtis, Charles H. (2)
- Russell, Edward J. (Edward John), Sir, 1872-1965 (2)
- Thomas, H. H. (2)
- Academy of Sciences of the USSR. Dokuchaiev Institute of Soil Science (1)
- American Chemical Society (1)
- Beeson, Emma Burbank (1)
- British Museum (Natural History) (1)
- Burbank, Luther, 1849-1926 (1)
- Collings, Gilbeart H. (Gilbeart Hooper), 1895- (1)
- D'Herelle, F. (1)
- Darbishire, A. D. (Arthur Dukinfield), 1879-1915 (1)
- Easterwood, Henry W. (1)
- Field Museum of Natural History (1)
- Fixed Nitrogen Research Laboratory Department Of Agriculture (1)
- Fox, Thomas (1)
- Great Britain. Ministry of Agriculture and Fisheries (1)
- Grove, A. (1)
- Hance, Francis E. (1)
- Hilgard, E. W. (1)
- International Society of Soil Science. Commission III (1)
- International Society of Soil Science. First Commission (1)
- Joffe, Jacob S. (Jacob Samuel), 1887- (1)
- Johnson, A. T. (Arthur Tysilio), 1873-1956 (1)
- Johnstone, Sydney J. (Sydney James) (1)
- Ladd, H. S. (1)
- Macself, A. J. (Albert James), 1878-1952 (1)
- Newth, G. S. (1)
- Nichols, Henry W. (1)
- Nitrate Division, Ordnance Office War Department (1)
- Peattie, Donald Culross, 1898-1964 (1)
- Robie, W. F. (Walter Franklin), 1866- (1)
- Robinson, W. (William), 1838-1935 (1)
- Saeki, Hideaki (1)
- Slusser, Effie Young (1)
- Smith, George H. (1)
- Starkey, Robert L. (1)
- Tanner, Arthur Edmund (1)
- The Breau for the Soil Map of Asia (1)
- Thomson, W. P. (1)
- Thorp, James, 1896- (1)
- Vilmorin-Andrieux et cie (1)
- Voorhees, Edward B. (1)
- Voorhees, John H. (1)
- Waggaman, William Henry (1)
- Waldo, Lillian McLean (1)
- Ware Bros. Company (1)
- Wentworth, C. K. (1)
- Williams, Mary Belle (1)
- Woodward, C. J. (1)
- Wright, C. Harold (Charles Harold) (1)