Logical and epistemological problems in physical theories of fields

We sketch some logico-semantic problems and dichotomies suggesting that in the interpretation of physical theories we have to change our usual gestaltic organisation and our usual language with its names and connectives. We propose to associate to the names of the objects some functions (referential functions) of suitable parameters; these parameters, that are mutuated from the mathematical and operative descriptions and are connected with technological capacities, represent the referential domain of the name. In fact, by comparison between successive theories in which the domains of normativity have a non empty overlapping, we can set suitable limits to the variation of parameters of referential functions inside a determinate theory. So the referential domain of the names can be modulated by changing the parameters. For example, the passage from special relativity to classical mechanics can be ruled by the limit of a parameter p going to zero, where the parameter p is equal to the inverse of the speed of light.