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determines reference has been attributed to both Frege and Heidegger. Contrary to the view that this commits them to linguistic idealism, I defend a weak version of the determination thesis according to which both Fregean and Heideggerian reference allow for the possibility of error and for the objectivity of discourse. Thus, what we refer to is accessible to us only by our grasping its sense of meaning; sense is a way of fixing reference, but does not constitute the referent as what it is. Key Words: Frege • Heidegger • reference.

you use it. These two assumptions, which I believe to be false, are based on a more fundamental assumption, that the rule governing the reference of an indexical remains constant from use to use. Contemporary theories hold that the reference of an indexical varies from use to (relevantly different) use, but that the reference-fixing rule of use is You can search..

This paper is a reply to some of Scott Soames' comments on my colloquium paper Marcus, Kripke, and the Origin of the New Theory of Reference. Except for the indicated parts added in May, 1995, this paper was written on December 16th–25th, 1994 as my reply to Soames for the APA colloquium in Boston, December 28, 1994. In this paper, I argue that Soames' contention that Marcus is not one of the primary founders of contemporary nondescriptivist theories of reference is false. Soames presents numerous arguments for his thesis that Marcus did not originate ideas later elaborated upon by Kripke, but his arguments are unsound; they are based in part on a misunderstanding of Marcus' theory and in part on an inadequate grasp of some of the key notions of the New Theory of Reference, such as the notion of a posteriori necessities and the notion of reference-fixing descriptions.

Within the general framework of the theory of direct reference, there is no agreement as to whether unactualised possible objects (from now on, possibilia) can be referred to by means of directly referential singular terms (from now on, DR terms). While some have maintained that such a direct reference can be established e.g. via some fixing-reference description (Kaplan, Salmon, and perhaps Kripke himself), others have denied any such possibility. In what follows, I will scrutinise such denials by attempting at the same time to provide some counterarguments to them. Indeed, I believe that possibilia can be referred to directly, primarily if the appropriate fixing-reference description is provided.

The paper discusses reference determination from the point of view of conceptual change in science. The first part of the discussion uses the homology concept, a natural kind term from biology, as an example. It is argued that the causal theory of reference gives an incomplete account of reference determination even in the case of natural kind terms. Moreover, even if descriptions of the referent are taken into account, this does not yield a satisfactory account of reference in the case of the homology concept. I suggest that in addition to the factors that standard theories of reference invoke the scientific use of concepts and the epistemic interests pursued with concepts are important factors in determining the reference of scientific concepts. In the second part, I argue for a moderate holism about reference determination according to which the set of conditions that determine the reference of a concept is relatively open and different conditions may be reference fixing depending on the context in which this concept is used. It is also suggested that which features are reference determining in a particular case may depend on the philosophical interests that underlie reference ascription and the study of conceptual change.

Pure causal theories of reference cannot account for cases of theoretical term reference failure and do not capture the scientific point of introducing new theoretical terminology. In order to account for paradigm cases of reference failure and the point of new theoretical terminology, a descriptive element must play a role in fixing the reference of theoretical terms. Richard Boyd's concept of theory constituitive metaphors provides the necessary descriptive element in reference fixing. In addition to providing a plausible account of reference failure and success, a metaphor approach to reference fixing provides the basis for a plausible realist account of the progress of science. Indeed, the metaphor approach undermines the sceptical force of the meta-induction and Laudan's objections to scientific realism.

This paper develops a new account of reference-fixing for proper names. The account is built around an intuitive claim about reference fixing: the claim that I am a participant in a practice of using α to refer to o only if my uses of α are constrained by the representationally relevant ways it is possible for o to behave. §I raises examples that suggest that a right account of how proper names refer should incorporate this claim. §II provides such an account.

Kripke and Putnam have proposed that terms may be introduced to refer to theoretical entities by means of causal descriptions such as 'whatever causes observable effects O'. It is argued that such a reference-fixing definition is ill-formed and that theoretical beliefs must be involved in fixing the reference of a theoretical term. Some examples of reference-fixing are discussed e.g., the term 'electricity'. The Kripke-Putnam theory can not give an account of how terms may be introduced into science and then subsequently be discovered to be non-referring. A modified account of reference-fixing is suggested in which terms such as Gilbert's electric effluvia' and 'phlogiston' can be introduced into science and then be found to lack a reference.

Summary One of the central questions concerning theories of reference has been the problem of how the reference of scientific terms gets fixed. Descriptive causal theories of reference, as discussed in this paper, have re-introduced the role of theoretical beliefs and conceptualisations in term introductions and reference-fixing. The present paper argues that the idea of reference-fixing as a dot-like event (baptism) is wrong: a number of episodes from the history of science are discussed to support the claim that reference-fixing is a historical, drawn-out process. This, however, does not stand in the way of successful reference. The two processes are simply separated. A criterion is suggested to determine successful reference. From this approach two further ideas follow: not all scientific terms actually have the power of referring and even those that do will always retain a residual indeterminacy.