CONTEXTS 



Agronomy 1324—1416 



Botanical Education 1417-1 



Forest Botany and Forestry 1419-1469 



Genetics 1470- 1 



Horticulture 1524- I 



Morphology, Anatomy and Histology of Vascular Plants 1507- I 



Morphology and Taxonomy of Algae 1577- 1 



Morphologj' and Taxonomy of Bryophytes 15S3-15S9 



Morphology and Taxonomy of Fungi. Bacteria and Myxomycetes 1790-1 



Paleobotany and Evolutionary History 1597-1621 



Pathology 1622 



Pharmaceutical Botany and Pharmacognosy 1670-17;7 



Physiology 1738-1 



Soil Science 1763- 1 



Taxonomy of Vascular Plant s 1907- 



Miscellaneous 1843-1 3 - 



BOARD OF EDITORS FOR; 1920 

 AND ASSISTANT EDITORS 



Editor-in-Chief, Burton E. Livingston 



The Johns Hopkins University, Baltimore 



Associate, Lon A. Hawkins 



U. S. Bureau of riant Industry, Washington, D. C. 



EDITORS FOR SECTIONS 



Agronomy. C. V. Piper, U. S. Bureau of Plant Indus- 

 try, Washington, D. C— Assistant Editor, Mart R. 

 Bi re, I . S. Bureau of Plant Industry, Washington, 

 D. C. 



Bibliography, Biography and History. Lincoln W. 

 Riddle, Harvard University, Cambridge, Mass - 

 setts. 



Botanical Education. C. Stuart Gager, Brooklyn 

 Botanic Garden, Brooklyn, N-. Y. — Assistant Editor, 

 Alfred Gi ndersen, Brooklyn Botanic Garden, 

 Brooklyn, New York. 



Cytology. Gilbert M. Smith, University of Wisconsin, 

 Madison, Wisconsin — Assistant Editor, Geo. S. 

 Bryan, University of Wisconsin, Madison, Wisconsin. 



Ecology and Plant Geography. H. C. Cow lis. 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. — A Editor, J. V. 



Hoffman, U. S. Forest Service, Wind River Ex- 

 periment Station, Stabler, Washingto 



Genetics. George H. mull, Princeton University, 

 Princeton, N. J. — AssiBta nl Editor, J. P. Kelly, Penn- 

 sylvania State College, State College, Pennsylvania. 



Horticulture. J. II. Gourley, New Hampshire Agri- 

 cultural College, Durham, New Hampshire. 



Miscellaneous, Unclassified Publications. Burton E. 

 Livingston, The Johns Hopkins University, Balti- 

 more, Maryland 



Morphology, Taxonomy and Histology of Vascular Plants. 

 I'.. W. Sinnott, Connecticut Agricultural College, 

 Storrs, Connecticut. 



Morphology and Taxonomy of Algae. E. N. Transeau, 

 Ohio State University, Columbus, Ohio. 



Morphology and Taxonomy of Bryophytes. Alexander 

 W. Evans, Yale University, New Haven, Connecticut. 



Morphology and Taxonomy of Fungi, Bacteria and Myx- 

 omycetes. E. W. Olive, Brooklyn Botanic Garden, 

 Brooklyn, New York— Assistant Editor, H. M. Fitz- 

 patrick, Cornell University, Ithaca, New York. 



Paleobotany and Evolutionary History. Edward W 

 Berry, The Johns Hopkins University, Baltimore! 

 Maryland. 



Pathology. G. H. Coons, Michigan Agricultural Col- 

 lege, East Lansing, Michigan — Assistant Editor, C. W. 

 nnett, Michigan Agricultural College, East Lans- 

 ing, Michigan. 



Pharmaceutical Botany and Pharmacognosy. Heber W. 

 Yovngken, Philadelphia Collegeof Pharmacy aiid 

 Science, Philadelphia, Pennsylvania — Assistant Editor, 

 E. N. Gathercoal, I Diversity of Illinois, Urbana, 

 Illinois. 



Physiology. B.M. Duggar, Missouri Botanical Garden, 

 St. Louis, Missouri — Assistant Editor, Carroll W. 

 Dodge, Brown Univen Ltj , Providence, Rhode Island. 



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, Wash- 

 ington, D. C. 



Taxonomy of Vascular Plants. J. M. Greenman. Mis- 

 so' Botanies St. Louis, Missouri — 



Assistant Editor, E, B. Payson, Missouri Botanical 

 len, St. Louis. Missouri. 



BIBLIOGRAPHY COMMITTEE FOR 1920 



J. R. Schramm, Chairman, Cornell University, New York. 



H. O. Buckman L. Knudson 



w. H. Chandler E. G. Montgomery 



\. .1. E V I >. L!:!>D1CK 



R. A Emerson L W. Sharp 



11. M. Fitzpatrick K M.Wiega 



R Homier 



