Beadle, G. W., University of Chicago, Chicago, Illinois
Berry, Stanley, 408 Lippincot Avenue, Riverton, New Jersey
Brock, R. D. Division of Plant Industry, CSIRO, P. O. Box 109 Canberra, Australia
Burgess, David E. Burgess Seed & Plant Co., Galesburg, Michigan Chambers, Miss E. V. Ministry of Agriculture, Room 222, Stormont
Belfast, N. Ireland
Chroboczek, Emil, Zaklad Warzywnictwa, Instytutu Uprawy. Nawzenia i Gleboznawstwa, Skierniewice, sk. poczt. 69, Poland
C.S.I.R.O., P. O. Box 109 City, Canberra, A.C.T., Australia
Graham, K. M. Department of Agriculture Research Station, P. O. Box 280, Fredericton, N. Br., Canada
Gyorffy, Barna, Institute of Genetics, Herman Otto ut 15, Budapest, Hungary
Hepner, Leon W., 617 College Drive, Starkville, Mississippi
Hoadley, Alfred D., Campbell Soup Co., Napoleon, Ohio
Hojby, H., Bohemia, Flat 405, 631 Church Street, Arcadia, Pretoria, South Africa
Instituto de Ecologia, Esperimentation Agricola, Caixa Postal 1620, Rio de Janeiro, Brazil
Kemp, G. A. Experimental Station, Department of Agriculture,
Lethbridge, Alberta, Canada
Kloz, Josef, Czecoslovac Academy of Sciences, Biological Institute,
Na cviciati 2, Prague, 6, Czechoslovakia
Martin, Frank W. Agricultural Experiment Station, State University of
Washington, Puyallup, Washington
Maurer, A. R. Ministry of Agriculture, Samaru, Zaria, Northern Region, Nigeria
Menzel, Margaret Y., U. S. Department of Agriculture. Florida State University, Tallahassee, Florida
Nickeson, Richard L., Agricultural Research Department, Campbell's Soups Ltd., King's Lynn, Norfolk, England
Orton, Jr. E. R. Department of Horticulture, Rutgers University, New Brunswick, New Jersey
Palenzona, Domenico, Instituto di Genetica, Universita di Pavia, Via Sant' Epifanio 14, Pavia, Italy
Pecaut, P. Station d'Amelioration des Plantes, Domaine St. Maurice, Montfavet (Vse) France
Perlasca, Gerardo, Campbell's Soups S.P.A. Felegara, Parma, Italy
Piovano, Abelardo, San Giovami Ateduccio, Naples, Italy
Pratt, David, Microbiological Institute, University of Copenhagen, Copenhagen, Demark
Richardson, Jr. R. W., Rockefeller Foundation, Londres 40, Mexico 6, D.F. Mexico
Robinson, R. W., Department of Vegetable Crops, Agricultural Experiment Station, Geneva, New York
Sang, Yu Tian, C. A. Men's Dormitory. University of the Philippines College, Laguna, Philippines
Sawant, Anand C., Department of Zoology, Michigan State University, East Lansing, Michigan
Scossiroli, R. E., Istituto di Genetica, Universita di Pavia, Via Santi Epifanio 14, Pavia, Italy
Shapiro, Nathan, Department of Biological Sciences, Purdue University, Lafayette, Indiana
Shumovich, Wm. Agricultural Research, Leeward Islands Co., Ltd., Plymouth, Montserrat, West Indies
Trotter, Allen R., Associated Seed Growers, Inc. 272 George Street, New Haven 10, Connecticut
Venkataratnam, L., Horticulture Specialist, Ministry of Agriculture, New Delhi 2, India
Wall, J. Robert, Southeastern Vegetable Breeding Laboratory, Box 3348, St. Andrew Branch P. O. Charleston, South Carolina
Weaver, G. M. Horticulture Section, Canada Department of Agriculture, Research Station, Harrow, Ontario
Weizmann Institute of Science, The WIX Library, Rehovoth, Israel
Whalen, Richard H., Department of Horticulture, University of Wisconsin, Madison, Wisconsin
Young, P. A. Tomato Disease Laboratory. Rt. 2., Jacksonville, Texas