"Inconsistencies in Scientific Reasoning'' is a one day workshop organized by the Centre for Logic and Philosophy of Science (CLPS) at Ghent University (http://logica.ugent.be/centrum). The workshop aims at exploring two closely related issues. First, the descriptive question, how frequent and how significant inconsistencies in scientific reasoning are. This gives rise to the second question, what normative conclusions we can draw from such historical analyses. The latter issue concerns the methodological standards of scientific inquiry, as well as the question whether classical logic is sufficient for the explication of scientific reasoning, or whether specific non-classical logics are needed to this end.