Of control methods. pp. 26.
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Anna Barrows, Charles Dwight Marsh, Charles Vancouver Piper, Clyde Harry Teesdale, Dan T. Gray, Edward H. Thomson, Edwin Richard Kalmbach, Eugene Wiley Scott, Frank Cummings Cook, Frank Gary Eason, Fred Taylor, Frederick Charles Scobey, Harold Joslyn Besley, Harry B. Shaw, John June Davis, Josef Brunner, Oswald Schreiner, Perley Spaulding, Rodney Howard True, United States. Department of Agriculture, V. L. Wildermuth, Walter Long Williams, William Orrin Robinson, William Salisbury Ballard, A. B. Clawson, George Henry Baston, Harrison Morton Dixon, John Howard Paine, Joshua John Skinner, Robert Harris Hutchison, W. F. Ward, Wells Alvord Sherman, William Hunter Volck, William Joseph Morse, Freeman Montague Scales, Hadleigh Marsh· 1914
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Asher Hobson, Carl Rohwer, Gustaf Adolph Pearson, Harry Eugene Burke, James Augustus Hyslop, Jesse Burdette Bain, Juan Brewer Demaree, Lyman Spaulding Hulbert, William Henry Fry, William Salisbury Ballard, John Robert Magness, Joseph Burton Chaney, Ralph P. Hotis, Raymond Daniel Hartman, Lon Adrian Hawkins, Thomas Elliott Snyder· 1922
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William Henry Fry, Alden True Speare, Asher Hobson, Carl Rohwer, Charles Steven Reddy, Clarence Ferdinand Korstian, Curtis Criss McDonnell, Gerald Cornelius Wheeler, Gustaf Adolph Pearson, Harry Eugene Burke, James Augustus Hyslop, Jesse Burdette Bain, John Robinson Winston, Juan Brewer Demaree, Lyman Spaulding Hulbert, Myron Sallee Anderson, Orator Fuller Cook, Owen Edward Williams, Philip Rupp, Robert Van Reynolds, Robert Wilson, Sewall Wright, Silas Cheever Mason, Wendell Holmes Tisdale, William Salisbury Ballard, Albert Halsey Pierson, Charles Meldrum Smith, F. E. Cobb, John Robert Magness, Joseph Burton Chaney, Ralph P. Hotis, Raymond Daniel Hartman, William Edward Brentzel, William Henry Long, B. R. Coad, Lon Adrian Hawkins, Thomas Elliott Snyder· 1922
And general conclusions. pp. 48.
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· 1914