Abstract
Among the very many questions we might wish to ask of any particular science, two of them concern the nature of the objects of the science and the character of the laws which describe the behaviour of those objects. What I wish to do is to raise those two questions about historical materialism. That is, I want to ask what it is that one studies in Capital for example, and in what ways of behaving does the nomic or lawlike behaviour of those objects consist. Both are ontological questions of a sort, and, in particular, questions about what I call social ontology, although it is usual to restrict the term ‘ontological’ to the former question alone. The first question asks about the objects to whose existence historical materialism is committed; the second asks about the characteristic ways of behaving of those objects.