BOARD OF EDITORS AND ASSISTANT EDITORS 



FOR VOLUME X 



Editor-in-Chief, J. R. Schramm 



National Research Council, Washington, D. C. 



EDITORS FOR SECTIONS 



Agronomy. C. V. Piper, U. S. Bureau of 

 Plant Industry, Washington, D. C. — 

 Assistant Editor, Mary R. Burr, U. S. 

 Bureau of Plant Industry, Washington, 

 D. C. 



Bibliography, Biography, and History. 

 Neil E. Stevens, U. S. Bureau of Plant 

 Industry, Washington, D. C. 



Botanical Education. C. Stuart Gager, 

 Brooklyn Botanic Garden, Brooklyn, 

 New York. — Assistant Editor, Alfred 

 GuNDERSEN, Brooklyn Botanic Garden, 

 Brooklyn, New York. 



Cytology. Gilbert M. Smith, University 

 of Wisconsin, Madison, Wisconsin. — 

 Assistant Editor, Geo. S. Bryan, Uni- 

 versity of Wisconsin, Madison, Wisconsin. 



Ecology and Plant Geography. H. C. 

 CowLES, The University of Chicago, 

 Chicago, Illinois. — Assistant Editor, Geo. 

 D. Fuller, The University of Chicago, 

 Chicago, Illinois. 



Forest Botany and Forestry. Raphael 

 ZoN, U. S. Forest Service, Washington, 

 D. C. — Assistant Editor, J. V. Hofmann, 

 U. S. Forest Service, Wind River Experi- 

 ment Station, Stabler, Washington. 



Genetics. George H. Shull, Princeton 

 University, Princeton, New Jersey. — 

 Assistant Editor, J. P. Kelly, Pennsyl- 

 vania State College, State College, Penn- 

 sylvania. 



Horticulture. J. H. Gourley, Ohio Agricul- 

 tural Experiment Station, Wooster, Ohio. 

 — Assistant Editor, H. E. Knowlton, 

 West Virginia University, Morgantown, 

 West Virginia. 



Miscellaneous, Unclassified Publications. 

 Burton E. Livingston, The Johns 

 Hopkins University, Baltimore, Mary- 

 land. — Assistant Editor, Sam F. Tre- 

 lease. The Johns Hopkins University, 

 Baltimore, Maryland. 



Morphology, Anatomy, and Histology of 

 Vascular Plants. E. W. Sinnott, Con- 

 necticut Agricultural College, Storrs, 

 Connecticut. 



Morphology and Taxonomy of Algae. E. N. 

 Transeau, Ohio State University, 

 Columbus, Ohio. — Assistant Editor, L, 

 H. Tiffany, Ohio State University, 

 Columbus, Ohio. 



Morphology and Taxonomy of Bryophytes. 

 Alexander W. Evans, Yale University, 

 New Haven, Connecticut. 



Morphology and Taxonomy of Fungi, 

 Lichens, Bacteria, and Myxomycetes. 

 H. M. Fitzpatrick, Cornell University, 

 Ithaca, New York. 



Paleobotany and Evolutionary History. 

 Edward W. Berry, The Johns Hopkins 

 University, Baltimore, Maryland. 



Pathology. G. H. Coons, Michigan Agri- 

 cultural College, East Lansing, Michi- 

 gan. — Assistant Editor, C. W. Bennett, 

 Slichigan Agricultural College, East 

 Lansing, Michigan. 



Pharmaceutical Botany and Pharmacognosy. 

 Heber W. Youngken, Philadelphia 

 College of Pharmacy and Science, Phila- 

 delphia, Pennsylvania. — Assistant Edi- 

 tor, E. N. Gathercoal, 701 South W^ood 

 Street, Chicago, Illinois. 



Physiology. B. M. Duggar, Missouri 

 Botanical Garden, St. Louis, Missouri. — 

 Assistant Editor, Carroll W. Dodge, 

 Harvard LTniversity, Cambridge, Massa- 

 chusetts. 



Soil Science. J. J. Skinner, U. S. Bureau 

 of Plant Industry, Washington, D. C. — 

 Assistant Editor^ F. M. Schertz, U. S. 

 Bureau of Plant Industry, Washington, 



D. C. 



Taxonomy of Vascular Plants. J. M. 

 Greenman, Missouri Botanical Garden, 

 St. Louis, Missouri. — Assistant Editor, 



E. B. Payson. University of Wyoming, 

 Laramie, Wyoming. 



BIBLIOGRAPHY COMMITTEE FOR 1921 

 J. R. Schramm, Chairman, National Research Council, Washington, D. C. 



H. O. Buckman 

 W. H. Chandler 

 A. J. Fames 

 R. A. Emerson 



R. Hosmer 

 L. Knudson 

 D. Reddick 

 L. W. Sharp 



H. M. Fitzpatrick K. M.Wiegand 

 R. S. Harris, Secretary 



IV 



