"The introductions, which occupy one-sixth of the volume, are carefully, clearly, and at times even beautifully written. Perhaps most important, they are always intelligently sympathetic to the authors whose views they are presenting." (The Journal of the International Society for the History of Philosophy of Science, 1 April 2011)"Overall, this is an impressive and versatile volume that should find its way into many classrooms. The commentary is thorough and clear enough to make the readings accessible to students, but not so imposing that instructors cannot add their own interpretation. This book would be suitable for advanced undergraduates who have completed previous coursework in history or philosophy." (Science & Education, 4 March 2011)