A closer examination of scientific practice has cast doubt recently on the thesis that observation necessarily fails to determine theory. In some cases scientists derive fundamental hypotheses from phenomena and general background knowledge by means of demonstrative induction. This note argues that it is wrong to interpret such an argument as providing inductive support for the conclusion, e.g. by eliminating rival hypotheses. The examination of the deduction of the inverse square law of gravitation due to J. Bertrand, and R. Fowler's (...) deduction of the quantization of the linear harmonic oscillator's energy spectrum from Planck's radiation law illustrates this point. It is suggested that demonstrative induction is a computational step in fitting a theoretical model and a set of phenomena, with little direct confirmational impact. The thesis of underdetermination, whatever one may think of it, is not threatened by demonstrative induction. (shrink)

The following overview of the present situation and recent trends in the philosophy of science in the USA brings together bibliographical and institutional evidence to document the last stages of the supersession of logical positivism, the emergence of the historical school , its widespread influence upon other fields as well as within philosophy of science, and finally some of the reactions to it, many of which envision their endeavors as mediations between the historical school and the older logical approaches As (...) well as recording pertinent institutional trends, the report provides a series of capsule summaries of representative work from the extant literature primarily from 1966 to the present. (shrink)