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  In Quest of the Universe - Theo Koupelis - Google Books

  http://books.google.de/books?id=GVlpKZ67DscC&pg=PA215

  Available with WebAssign! Designed for the nonscience major, In Quest of the Universe, Sixth Edition, is a comprehensive, student-friendly introduction to astronomy. This accessible text guides readers through the development of historical and current…

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  General Philosophy of Science: Focal Issues - Google Books

  http://books.google.de/books?id=qUMuFaXjNjEC&pg=PA476

  Scientists use concepts and principles that are partly specific for their subject matter, but they also share part of them with colleagues working in different fields. Compare the biological notion of a 'natural kind' with the general notion of…

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