system, the moon, and the earth. In addition to many journal articles, his work culminated in a three-volume series titled A History of Modern Planetary Physics. He also continued to write about the history of science for less specialized audiences. In 1988 Brush published The History of Modern Science. A Guide to the Second Scientific Revolution 1800–1950. A book about the history of physics for non-scientists written with former Harvard colleague Gerald Holton called Physics, the human adventure, from Copernicus to Einstein and beyond, was published in 2001. Since 2001 Dr. Brush has studied the question of why various scientific theories, such as the theory of relativity or Mendeleyev's Periodic System of Elements, prevailed. This avenue of research culminated in his 2015 book, Making 20th Century Science: How Theories Became Knowledge. Personal life Brush was married to the late Phyllis Brush for 55 years and has two children and two grandchildren. Publications For a complete list of Brush's publications, visit his website: http://terpconnect.umd.edu/~brush/StephenGBrushHomePage.html. Statistical mechanics (1) Kinetic theory: introduction and original texts. Oxford, Pergamon Press, 1965-72. a. Volume 1 (1965) The Nature of Gases and of Heat – excerpts and works by Robert Boyle, Isaac Newton, Daniel Bernoulli, George Gregory, Robert Mayer, James Prescott Joule, James Clerk Maxwell, Rudolf Clausius, Hermann von Helmholtz with commentary by Brush b. Volume 2 (1966) Irreversible Processes - excerpts and works by Maxwell, Lord Kelvin, Boltzmann, Henri Poincaré, Ernst Zermelo c. Volume 3 (1972), The Chapman-Enskog Theory of the transport equation of moderately dense gases (work of David Enskog, Sydney Chapman, David Hilbert) (2) The Kind of Motion We Call Heat – A History of the Kinetic Theory of Gases in the 19th Century. North Holland 1976, 2 volumes, (3) Statistical Physics and the Atomic Theory of Matter from Boyle and Newton to Landau and Onsager. Princeton University Press, 1983, (4) The Kinetic Theory of Gases – An Anthology of Classical Papers with Commentary. Imperial College Press 2003, (5) With Elizabeth Garber & C. W. F. Everitt: Maxwell on Molecules and Gases. MIT Press 1986, (6) With Elizabeth Garber & C. W. F. Everitt: Maxwell on Heat and Statistical Mechanics: on Avoiding All “Personal Inquiries“ of Molecules. Lehigh University Press 1995, Geophysics (8) Theories of Origins of the Solar System 1956–1985. In: Reviews of Modern Physics, volume 62, 1990, p. 42–112 (9) A History of Modern Planetary Physics. 3 volumes, Cambridge University Physics 1995