The Semantics of Science is, we are told, about ‘the assumptions about language that scientists make in their work’ (SS, pp. vii–viii). Here, then, is a book purportedly about the work of science on the one hand, and what presuppositions about language scientists make as they do their work on the other. It turns out that this early announcement does not mean that Harris discusses the activities of scientists as they design and conduct experiments, work in laboratories and the field, keep records, collect, analyse and interpret data, and interact in a multitude of other ways as they divide epistemic labour. More specifically Harris claims to consider two questions: ‘What does science require of language?’ and ‘What does language require of science?’ Harris’s engagement with these questions is an exercise in developing integrationism, his own approach to the field of linguistics. Actually, that characterisation is too narrow – it would be better to say that integrationism is an approach to all of human intellectual endeavour, since the argument Harris makes also ranges over issues in areas including epistemology, metaphysics and philosophy of mathematics, and because this book complements recent ones on language and art (Harris, 2003) and language and history (Harris, 2004). The present book comprises nine chapters and two appendices. I will present a brief overview here, postponing discussion of some of the terminology occurring in the overview for later. The architecture of the book is unsurprising, given that here as always Harris maintains that Western thought has been consistently dominated by a ‘language myth’ and that integrationism alone can dispel the fog. The first chapter apparently shows Aristotle articulating and endorsing a ‘reocentric semantics’. A range of later thinkers, especially in the seventeenth and nineteenth centuries are discussed in Chapter 2, showing the development of science as a ‘supercategory’. Chapter 3 concerns the early years of the Royal Society, and conflict between experimentalists and those they were displacing, including alchemists, especially conflict regarding the way to write about experiments. Chapter 4 argues that