Contributors: Alfred R. Lee, C. R. Tillotson, Charles Landon Goodrich, Clyde William Warburton, Edward David Vosbury, Edwin Richard Kalmbach, Samuel Mills Tracy, Wendell Holmes Tisdale, D. F. Fisher, D. M. Green, E. R. Barber, Ernest Adna Back, Harry M. Lamon, Joseph William Kinghorne, L. C. Aicher, Ralph Henry Brown, Rob Roy Slocum, Wilbur Reed Mattoon,
2 ebooks
Publisher: U.S. Department of Agriculture
Published: 1921
See this edition on Google Books