Abstract
This article describes an investigation in which I explored an impression that I had developed in earlier work that the grammatical subjects in scientific discourse are markedly long. An examination of a sample of scientific discourse produced evidence that makes a fairly strong case that on the average the grammatical subjects in the sample are markedly long. A stronger case can be made that many of the specific subjects in the sample are very long indeed, probably long enough to draw some attention to themselves in most any kind of discourse. I identify three pressures that I believe operate on scientists to produce very long grammatical subjects: The pressure to be precise, the pressure to be concise, and the pressure to be efficient and progressive in constructing a set of claims that will remain true within a framework of knowledge that has been built up over time. I conclude by exploring some possible connections between both the grammatical subjects in and the overall style of the sample of discourse and what Jerome Bruner calls the paradigmatic mode of thought.