 The general characteristic of such passages is that they use the same chain of pronouns to refer both to appearances and things in themselves. This strongly suggests that one and the same object can be an appearance and a thing in itself, or, to put it another way, the distinction between appearance and thing in itself is not a distinction between two or more objects, but a distinction between two different aspects of, or ways of considering, one and the same object. One and the same object can be considered as it appears to us in experience, or as it is in itself. Considered in the former way, the object must conform to our a priori intuitional forms, so it is in space and time. Considered in the other way, the object may not be in space and time. Some “dual aspect” readers cite the increased frequency of such passages in the Prolegomena and the B Edition as evidence that Kant, realizing that his distinction between two aspects of objects was being conflated with a distinction between two kinds of objects, sought to remedy this interpretation by emphasizing precisely this point. Prauss (1974) notes that, in most cases, Kant uses the expression “Dinge [Sachen, Objecte, Gegenstände] an sich selbst” rather than the shorter form “Dinge an sich”. He argues that “an sich selbst” functions as an adverb to modify an implicit attitude verb like “to consider” [betrachten]. He concludes that the dominant use of these expressions is as a short-hand for “things considered as they are in themselves” (Prauss 1974: 14–15).