I think that this book is regrettably out of print; my copy was printed in 1963. This book should be standard reading for biopsychology students, or probably any psychology students for that matter. It explains principles of behaviorism (that is, classical and operant conditioning) with far more clarity than any other text I have found. Scott has a talent for explaining behavior phenomena in simple, straightforward terms and using appropriate examples to illustrate.
The only other text I could find with his name is Genetics and the Social Behavior of the Dog, a book apparently exploring the behavior of dogs. Scott discusses dogs to some extent in Animal Behavior, but the text uses a variety of animals to give a much broader and more thorough treatment of animal behavior in its many forms (vertebrates and invertebrates).
The only animal notably absent is us humans; the principles are clear enough to apply to humans with a little imagination. One word of caution: Scott emphasizes that we should be very careful when trying to apply what we learn about one species to another, or more specifically to be very cautious with understanding human behavior in terms of what we (think we) know about other animals. Perhaps one reason for this books unpopularity is it's relatively conservative approach to generalization at the time when Skinner and other Radical Behaviorists were making excessive claims about the application of their research with minimal restraint.