This fourth volume of the Science as a Way of Knowing project contains 12 papers given at a conference in 1986 which was cosponsored by a variety of scientific and science education organizations. The presentations include: (1) "Science as a Way of Knowing--Developmental Biology" (John A. Moore); (2) "Embryonic Induction" (Richard M. Eakin, impersonating Hans Spemann); (3) "Understanding Embryonic Development: A Contemporary View" (Eric H. Davidson); (4) "Determinants of Early Amphibian Development" (John C. Gerhart); (5) "Cell Lineages and Determinants of Cell Fate in Development" (J. Richard Whittaker); (6) "Genomic Potential of Differentiated Cells Analyzed by Nuclear Transplantation" (Marie A. DiBerardino); (7) "Cell Adhesion as a Basis of Pattern in Embryonic Development" (Gerald M. Edelman and Warren J. Gallin); (8) "Inheritance of Pattern: Analysis From Phenotype to Gene" (Paul B. Green); (9) "Limb Development and Regeneration" (Susan V. Bryant, David M. Gardiner, and Ken Muneoka); (10) "Developmental Biology and Human Concerns" (E. Peter Volpe); (11) "The Next Big Problem in Developmental Biology" (John Tyler Bonner); and (12) "Films and Videotapes in Developmental Biology" (Gary Anderson and Nathan H. Hart). An index is included. (TW)