"An impressive set of contributions by scholars holding various combinations of credentials in experimental embryology, its history, and/or its philosophy... The book is well written and admirably edited. Although it is aimed at developmental biologists and other zoologists curious about embryology"s roots, it should also help historians of science to comprehend the most important issues in the foundation of contemporary developmental biology."--BioScience."Shows the pioneers of the discipline energetically competing for publication, disputing each other"s findings, and traveling around the world to collaborate--and disconcertingly reminds usjust how many of our current views about developmental control mechanisms are 100 or more years old."--Science