From the Editors. 323

Chang, T.T. Principles of genetic conservation. 325

Chang, T.T. Collection of crop germplasm. 349

Chang, T.T. Preservation of crop germplasm. 365

Chang, T.T. Evaluation and documentation of crop germplasm. 379

Chang, T.T. Germplasm enhancement and utilization. 399

Chang, T.T. Crop history and genetic conservation: Rice- A case study. 425

Chang, T.T. Appendix I. 457

Chang, T.T. Appendix II. 459

Chang, T.T. Literature cited. 461

Goodman, M.M. Exotic maize germplasm: Status, prospects, and remedies. 497

Krugman, S.L. Forest genetics and foreign policy. 529

Book review. 541