These essays examine the developments in three fundamental biological disciplines - embryology, evolutionary biology, and genetics.These essays examine the developments in three fundamental biological disciplines--embryology, evolutionary biology, and genetics. These disciplines were in conflict for much of the 20th century and the essays in this collection examine key methodological problems within these disciplines and the difficulties faced in overcoming the conflicts between them. Burian skillfully weaves together historical appreciation of the settings within which scientists work, substantial knowledge of the biological problems at stake and the methodological and philosophical issues faced in integrating biological knowledge drawn from disparate sources.These essays examine the developments in three fundamental biological disciplines--embryology, evolutionary biology, and genetics. These disciplines were in conflict for much of the 20th century and the essays in this collection examine key methodological problems within these disciplines and the difficulties faced in overcoming the conflicts between them. Burian skillfully weaves together historical appreciation of the settings within which scientists work, substantial knowledge of the biological problems at stake and the methodological and philosophical issues faced in integrating biological knowledge drawn from disparate sources.The essays in this collection examine developments in three fundamental biological disciplines--embryology, evolutionary biology, and genetics--in conflict with each other for much of the twentieth century. They consider key methodological problems and the difficulty of overcoming them. Richard Burian interweaves historical appreciation of the settings within which scientists work, substantial knowledge of the biological problems at stake and the methodological and philosophical issues faced in integrating biological knowledge drawn from disparate sources.1. General introduction; l“!