UNITED STATES DEPARTMENT OF AGRICULTURE 
BUREAU OP PLANT INDUSTRY 
OFFICE OF FOREIGN SEED AND PLANT INTRODUCTION 
WASHINGTON, D. C. 
Washington Scientific Staff. 
David Fairchild, Agricultural Explorer In Charge. 
P. H. Dorsett, Plant Introducer, in Charge of Field Stations. 
B. T. Galloway, Plant Pathologist, in Charge of Detention 
Laboratories . 
Peter Blsset, Plant Introducer, in Charge of Distribution. 
Wilson Popenoe, and J. F. Rock, Agricultural Explorers. 
R. A. Young, Plant Introducer, in Charge of Dasheen Investi- 
gations. 
H. C. Skeels, Botanist, in Charge of Collections. 
G. P. VanEseltine, Asst. Botanist, in Charge of Publications. 
H. E. Allanson, E. L. Crandall, L. G. Hoover, F. J. Hopkins, 
R. N. Jones, P. G. Russell, and C. C. Thomas, Assistants. 
Edward Goucher, Plant Propagator. 
Field Stations Scientific Staff. 
J. E. Morrow, Superintendent in Charge, Field Station, 
Chico, Calif. 
Henry Klopfer, Plant Propagator, Chico, Calif. 
Edward Simmonds, Superintendent in Charge, Field Station, 
Miami , Fla. 
Henry E. Juenemann, Superintendent in Charge, Field Station, 
Bellingham, Wash. 
D. A. Bisset, Assistant in Charge, Field Station, Brooks- 
ville, Fla; 
E. J. Rankin, Assistant In Charge, Field Station, Savannah, Ga. 
Special Collaborators . 
Mr. Thomas W. Brown, Cairo, Egypt; Mr. H. M. Curran, Bahla, 
Brazil; Mr. M. J. Dorsey, University Farm, St. Paul, Minn.; 
Mr. Robt. H. Forbes, Cairo, Egypt; Mr. A. C. Hartless, 
Seharunpur, India; Mr. E. W. D. Holway, Faribault, Minn.; 
Mr. Barbour Lathrop, Chicago, 111.; Dr. H. L. Lyon, Honolulu, 
Hawaii; Mr. H. Nehrllng, Gotha, Fla.; Mr. Charles T. Simpson, 
Llttleriver, Fla.; Mr. H. P. Stuckey, Georgia Experiment Station, 
Experiment, Ga.; Dr. L. Trabut, Director, Service Botanique, 
Algiers, Algeria; Mr. H. N. Whltford, School of Forestry, 
New Haven, Conn.; Mr. E. H. Wilson, Arnold Arboretum, Jamaica 
Plain, Mass. 
