Richard M. Burian is Professor of Philosophy and Science Studies at Virginia Polytechnic Institute and State University.

"for those willing to invest some time, the rewards of this volume are considerable: Burian presents a nuanced account of a number of important developments in 20th century biology." - Todd Grantham, College of Charleston

• 1. General introduction; Part I. Methodological Issues: 2. How the choice of experimental organism matters; 3. Unification and coherence as methodological objectives in the biological sciences; Part II. Evolution: 4. 'Adaptation'; 5. The influence of the evolutionary paradigm; 6. 'Nothing in biology makes sense except in the light of evolution' (Theodosius Dobzhansky); Part III. Genetics and Molecular Biology: 7. On conceptual change in biology; 8. Technique, task definition, and the transition from genetics to molecular genetics; 9. Too many kinds of genes; Part IV. Development: 10. Lillie's paradox - or, some hazards of cellular geography; 11. On conflicts between genetic and developmental viewpoints; 12. Reconceiving animals and their evolution.

Richard M. Burian is Professor of Philosophy and Science Studies at Virginia Polytechnic Institute and State University.

"for those willing to invest some time, the rewards of this volume are considerable: Burian presents a nuanced account of a number of important developments in 20th century biology." - Todd Grantham, College of Charleston

• 1. General introduction; Part I. Methodological Issues: 2. How the choice of experimental organism matters; 3. Unification and coherence as methodological objectives in the biological sciences; Part II. Evolution: 4. 'Adaptation'; 5. The influence of the evolutionary paradigm; 6. 'Nothing in biology makes sense except in the light of evolution' (Theodosius Dobzhansky); Part III. Genetics and Molecular Biology: 7. On conceptual change in biology; 8. Technique, task definition, and the transition from genetics to molecular genetics; 9. Too many kinds of genes; Part IV. Development: 10. Lillie's paradox - or, some hazards of cellular geography; 11. On conflicts between genetic and developmental viewpoints; 12. Reconceiving animals and their evolution.

Richard M. Burian is Professor of Philosophy and Science Studies at Virginia Polytechnic Institute and State University.

"for those willing to invest some time, the rewards of this volume are considerable: Burian presents a nuanced account of a number of important developments in 20th century biology." - Todd Grantham, College of Charleston

• 1. General introduction; Part I. Methodological Issues: 2. How the choice of experimental organism matters; 3. Unification and coherence as methodological objectives in the biological sciences; Part II. Evolution: 4. 'Adaptation'; 5. The influence of the evolutionary paradigm; 6. 'Nothing in biology makes sense except in the light of evolution' (Theodosius Dobzhansky); Part III. Genetics and Molecular Biology: 7. On conceptual change in biology; 8. Technique, task definition, and the transition from genetics to molecular genetics; 9. Too many kinds of genes; Part IV. Development: 10. Lillie's paradox - or, some hazards of cellular geography; 11. On conflicts between genetic and developmental viewpoints; 12. Reconceiving animals and their evolution.