Wallace, William A. From a Realist Point of View: Essays on the Philosophy of Science, Second Edition. Washington DC: University Press of America, 1983. Second Edition. ISBN: 9780819134462. 
Good softcover, some creasing to the covers and first few pages, the text is clean and unmarked. Good. Paperback.
16 essays plus a bibliography: Science and Philosophy, Methodology in Science, Realism in Science, Science and Man, Ultimate Explanation.