Hempel, Carl G. 1905-1997. Philosophy of natural science [by] Carl G. Hempel. - Englewood Cliffs, N.J., Prentice-Hall [1966] - ix, 116 p. 23 cm. - Prentice-Hall foundations of philosophy series . Includes bibliographical references. ISBN: 9780136638230 Subjects--Topical Terms: Science--Philosophy. Dewey Class. No.: 501 HEM