1. USDA‐ARS, Crop Science Res. Lab. P.O. Box 5367 Mississippi State MS 39762
2. Monsanto 700 Chesterfield Pkwy. North St. Louis MO 63198
3. Calgene Inc. 1920 Fifth St. Davis CA 95616
4. Paymaster Technologies P.O. Box 946 Stuttgart AR
5. Delta & Pine Land Co. Box 157 (now at Monsanto, St. Louis) Scott MS 38772