The Ascent of Science, by B. L. Silver, Oxford University Press, 1998 (approx. $ 30
Other highly readable textbooks that pursue important general topics are as follows:
The Age of Science, What Scientists Learned in the 20th Century, G. Piel, Basic Books, 2001 (approx. $ 60)
The Meme Machine, by Blackmore,S.J. 1999 Oxford, Oxford University Press. Hardback ISBN 0-19-850365-2. 2000 Paperback ISBN 0-19-286212-X
The Lucifer Principle. A Scientific Expedition Into The Forces of History by H. Bloom, Atlantic Monthly Press, 1995
More specialized recommended reading is as follows:
At Home In The Universe, S. Kaufman, Viking, 1995 (approx. $ 50)