Alexander, L. J., Dept. of Botany and Plant Pathology, Agricultural Experiment Station, Wooster, Ohio
Anderson, Edgar, Missouri Botanical Garden, 2315 Tower Grove Avenue, St. Louis 10, Missouri
Andes, J. O., Agriculture Experiment Station University of Tennessee, Knoxville, Tennessee
Andeweg, J. M., Inst. vd. Veredeling van Touinbougewassen 25 Heeren Straat, Wageningen, Holland
Andrew, Wm. T., Department of Vegetable Crops Southern Illinois University, Carbondale, Illinois
Andrus, C. F., U. S. Regional Vegetable Breeding Laboratory Box 177 St. Andrews Branch P. O., Charleston, South Carolina
Ar-Rushdi, A., Genetics Division University of California, Berkeley 4, Calif.
Barham, W. S., Dept. Horticulture N. C. State College, Raleigh, North Carolina
Barton, D. W., Div. Vegetable Crops Agric. Expt. Station, Geneva, New York
Beadle, G. W., Division of Biology Calif. Inst. of Technology, Pasadena, California
Bessey, Paul M., Dept. Horticulture University of Maine, Orono, Maine
Bishop, Charles J., Department of Agriculture Experimental Station, Kentville, Nova Scotia
Bjorlykke, Borghild, Library Agricultural College of Norway, Vollebekk, Norway
Bohn, G. W., Torrey Pines Hort. Field Station La Jolla, California
Boswell, R. R., Plant Industry Station Beltsville, Maryland
Bowers, J. L., Department of Horticulture and Forestry University of Arkansas, Fayetteville, Arkansas
Brock, R. D., Division Plant Industry P. 0. Box 109, Canberra, Australia
Brown, Ralph T., Plaquemines Parish Expt. Station Diamond, Louisiana
Brown, S. W., Division of Genetics University of California, Berkeley 4, Calif.
Brown, Walter N., Department of Horticulture University of Illinois, Urbana, Illinois
Buetow, Clarence, 14552 Otsego Street, Sherman Oaks, Calif.
Bullard., E. T., Branch Experiment Station University of Idaho, Parma, Idaho
Burdick, Alan, Dr., Department Biological Sciences Purdue University, Lafayette, Indiana
Butler, L., Dr., Department of Zoology, University of Torono, Toronto 5, Canada
University of California Genetics Division, Berkeley 4 Calif.
Cannon, O. S., Department of Horticulture Utah State Agricultural College, Logan, Utah
Chanasyk, Victor, Dept. of Agriculture Experimental Station, Beaverlodge, Alberta, Canada
Cook,Solomon, Agricultural Expt. Station South Dakota State College, Brookings, S. D.
Couto, Flavio A. A. Escola Superior de Agricultura Universidade Rural, Vicosa, Minas Gerais, Brasil, South America
Currence, T. M. Division of Horticulture Unversity of Minnesota, Saint Paul, Minnesota
Davis, Elmo W., Department of Horticulture Kansas State College, Manhattan, Kansas
Dempsey, Wesley, Department of Vegetable Crops University of California, Davis, Calif.
Denby, Lyall, Experimental Station Summerland Com., Brittish Colombia, Canada
Dennett, R. K., Department Horticulture Penna. State College, State College, Pa.
Dovaston, H. F., Department of Horticulture West of Scotland Agri. College, Auchincruive, Ayr, Scotland
Downes, J. D., Jr. Department Horticulture Michigan State College, East Lansing, Michigan
Elle, George O., Department Horticulture Texas Technical College, Lubbock, Texas
Emmert, E. M., Dept. of Horticulture Agricultural Expperiment Station Lexington, Kentucky
Epps, J. M., Weet Tennessee Agricultural Experiment Station Jackson, Tennessee
Epps, W. M., Truck Experiment Station P. O. Box 158,St. Andrews Branch, Charleston, South Carolina
Fineman, Z. M., Tod Park Box 371, Tooele, Utah
Flory, Walter S., Jr., Dr., Blandy Experimental Farm Boyce, Virginia
Fogle, Harold W., Irrigation Expt. Station State College of Washington, Prosser, Washington
Francis, F. J., Department of Horticulture Ontario, Agricultural College, Guelph, Canada
Frazier, W. A., Department of Vegetable Crops Oregon State College, Corvallis Oregon
Gabelman, W. H., Department of Horticulture University of Wisconsin, Madison, Wisconsin
Garber, E. D., Department Bacteriology Naval Biological Lab., Naval Supply Center, Oakland 4, Calif.
Gilbert, J. C., Department of Horticulture Agricultural Experiment Station, Honolulu, T. H.
Gottschalk, Werner, Max Planck- Institut fur Zuchtungsforschung Gut Nehof, Post Leihgestern, Kreis Giessen/Lahn, Germany
Graham K. M., Division Botany & Plant Pathology Department of Agriculture, Ottawa, Canada
Graham T. 0. Department of Plant Husbandry Ontario Agricultural College, Guelph, Ontatio, Canada
Griffing, J.B., Department of Genetics, Iowa State College, Ames, Iowa
Hafen, Leslie, Department of Horticulture Perdue University, Lafayette, Indiana
Hardin, M., Geary, Oaklahoma
Hargrave, P. D., Provincial Horticultural Station Brooks, Alberta, Canada
Harrison, A. L., Plant Disease Lab., Rt. 3. Yoakum, Texas
Helsel, Paul E., Associated Seed Growers, Inc., Franklin, Indiana
Holmes, F. O., Rockefeller Institute, 66th Street and York Ave., New York 21
Honma, Shigemi Department of Horticulture University of Nebraska, Lincoln 3, Nebraska
Hornby, C. A., Department of Horticulture University of British Columbia, Vancouver, Canada
Horowitz., Ingo. Solomon, Catedra de Genetica Facultad de Ing. Agronomica., Maracay, Venezuela
Huelsen, W. A., Department of Horticulture University of Illinois, Urbana, Illinois
Hoskins., C. L., Department of Botany University of Wisconsin, Madison, Wisconsin
Hutton, E. M., Department of Agriculture P. 0. Box 109 City, Canberra, Australia
Isbit, Arthur, Michigan State College, East Lansing, Michigan
Jacoby, Daniel, 383 Andrews Road, East Williston, L. I., N. Y.
Jenkins., J. A.,Division of Genetics, University of California, Berkeley 4, California
John, C. A., H. J. Heinz Company, Bowling Green, Ohio
Johnstone, F. E., Jr., Department of Horticulture University of Georgia, Athens, Georgia
Joubert, T. G., Pretoria Hor. Res. Station P. 0. Box 994, Pretoria, Union of South Africa
Jucci, Carlo, Centro Di Genetica Instituto DiZoologia, Universita Pavia, Pavia, Italy
Kerr, E. A., Horticulture Experimental Station Vineland, Ontario, Canada
Kihara, H., Dr., Laboratory of Genetics, Department of Agriculture Kyoto Imperial University, Kyoto Japan
Kristensen, Reinh, Hort. Plant Breeding Station Toftoe, Taastrup, Denmark
Lamm, Robert Statens Tradgarosforok, Alnarp, Akarp, Sweden
Larson, R. E., Department of Horticulture Pennsylvania State College, State College, Pennsylvania
Lesley, J. W., Division of Plant Breeding Citrus Experiment Station, Riverside, California
Lewis, D., Dr., John Innes Hort. Inst. Bayfordbury, Hertfordshire, England
Locke, L. F., S. Great Plains Field Station, Woodward, Oklahoma
Maefarland, 0. S., Jr., American Tonato Yearbook Big Scotch Plains Avenue, Westfield, New Jersey
McGuire, D. C., University of Hawaii College of Agriculture, Honolulu 14, T. H.
Magruder, Roy U.S.D.A. Room 317 Administration Bldg., Washington, D. C.
Mariota-Trias, F., Agricultural Experiment Station University of Puerto Rico, Rio Piedras, Puerto Rico
Martinez, Enrique J., Estacion Experimental Oliveros Oliveros F.C.G.B., Republica Argentina
Martens, Thomas R., Department Biological Science Purdue University, Lafayette, Indiana
Mikell, J. J., Department of Horticulture Agricultural Experiment Station, Baton Rouge, Louisiana
Mishanec, William Ward 108a, Veterans Hospital, Batavia,New York
Mohamed, Mohamed Abdel Maksoud, Faculty of Agriculture University of Ibrahim, Sheibin El-Kom, Egypt
Mohr, H. C., Department of Horticulture Agricultural Experiment Station, College Station, Texas
Moore, John F., Western Washington Experiment Station State College of Washington, Puyallup, Washington
Morrison, Gordon, Burgess Seed & Plant Co., Galesburg, Michigan
Munger, H. M., Department of Plant Breeding, Cornell University, Ithaca, N. Y.
National Institute of Genetics, Yata IIII, Misima, Japan
Nonnecke, I. L., Experimental Station, Lethbridge Com., Alberta, Canada
Odland, M. L., Department of Horticulture Pennsylvania State College, State College, Pennsylvania
Ounsworth, L. M., Experimental Station, Harrow Dom., Ontario, Canada
Ozsan, Bilal, Experiment Station, P. K. 35, Antalya, Turkey
Paddock, Elton F., Department of Botany Ohio State University, Columbus, Ohio
Perry, B. A., Texas Agricultural Experiment Station Substation 19 Winter Haven, Texas
Peto, Howard B., Peto-Hollar Co., 2166 Palomar Ave., Ventura, Calif.
Plaisted, R. L., R. D. #1, Canisteo, New York
Pollack, B. L., Department of Horticulture Pennsylvania State College, State College, Pa.
Poole, C. F., Department of Vegetable Crops Agricultural Experiment Station, Honolulu, Hawaii
Pound, G. S., Department of Plant Pathology Wisconsin Agricultural Experiment Station, Madison, Wisconsin
Powers, L., Horticultural Field Station, Cheyenne, Wyoming
Reichstein, Frank A., Beloit Daily News, Beloit, Wisconsin
Relyea, K. E., Farmer Seed & Nursery Company, Faribault, Minnesota
Reynard, G. B., Campbell Soup Co., Riverton, New Jersey
Richardson, R. W., Jr. Rockefeller Foundation Londres 45, Mexico 6, D. F.
Rick, C. M., Department of Vegetable Crops University of California, Davis, Calif.
Rios, G. Mario, Gomez Farias No. 49-6, Mexico, D. F.
Robinson, R. W., Slaters Court, Davis, Calif.
Roever, W. E., West Tenn. Experiment Station, Jackson, Tennessee
Sawant, Anand C., Department of Vegetable Crops University of California, Davis, Calif.
Schermerhorn, L. G., Department of Horticulture Rutgers University, New Brunswick, New Jersey
Schultz, J. H., Department Horticulture North Dakota Agricultural College, Fargo, N. D.
Scott, G. W., Associated Seed Growers, Inc., New Haven 2, Conn.
Scott, Wilbur, Joseph Harris Co.,Inc., Moreton Farm, Rochester 11, N. Y.
Sen, Nirad K., 1/6 Golam Md. Road (First Floor), Kalighat, Calcutta, India
Shifriss, Oved, The Weizmann Institute of Science, Rehoveth, Israel
Skirm, George W., F. H. Woodruff & Sons, Milford, Connecticut
Smith, James J., The Quaker Maid Co., Inc., Brockport Cannery, Brockport, N.Y.
Smith, P. G., Department of Vegetable Crops University of Califomia,Davis, Calif.
Soost, R. K., Dr., Citrus Experiment Station, University of California, Riverside, Calif.
Stark, F. C., Jr., Department of Horticulture University of Maryland, College Park, Maryland
Stevenson, E. C., Department of Horticulture Perdue University, Lafeyette, Indiana
Tezier, Claude, Tezier Freres, 27 Ave. Gambetta, Valence Sur-Rhone, France
Tomes, M. L., Department of Plant Pathology Indiana Agricultural Experiment Station, Lafayette, Indiana
Walker, D. E., E. W. McLellan Co., Box 289 Colma, San Fransisco 25, Calif.
Walkof, Chas., Experiment Farm, Morden, Manitoba, Canada
Walter, J. M., Box 678 Vegetable Crops Lab., Bradenyon, Florida
Whaley, W. G., Department of Botany University of Texas, Austin, Texas
Wortman, Sterling, Rockefeller Institute,Londres 45, Mexico 6, D. F. Mexico
Yarnell, S. H., U. S. Regional Vegetable Breeding Lab. U. S. D. A., Box 177 St. Andrews Branch, Charleston, S. C.
Yeager, A. F., University of New Hampshire, Durham, N. H
York, Thomas L., Department of Plant Breeding, Cornell University, Ithaca, New York
Young, Harold W., Horticulture Department Ohio State University, Columbus, Ohio
Young, P. A., Tomato Diseases Lab., Rt. 4, Jacksonville, Texas
Young, Robert E., Field Station University of Massachusetts, Waltham, Massachusetts
deZerpa, Ingo. Dora M., Catedra de Genetica Facultad de Ing. Agronomica, Maracay, Venezuela