ABSTRACT
"Uncertainty," in reference to a claim, can be asserted in other ways than by a preface which mentions the speaker's relation to the account. This chapter begins with a characterization of a sequential environment in which modifications of accounts occur in conversation. It presents modifications in ordinary settings of discourse, line-by-line analyses of several transcripts of recorded conversations which occurred in a scientific laboratory. Indeed, preliminary examination of some instances of laboratory shop talk indicates that much of what was said in the foregoing discussion of modifications can be documented with instances of laboratory shop talk as well. The artifact possibility raises the question of whether the label reveals an interior anatomical or biochemical phenomenon in the brain system, or whether it identifies more or less irrelevant structures. Two electron microscopy specialists are assembling a montage of recently developed electron micrographs for use as data in the ultrastructure project.
