Undergraduates may major in Philosophy with a degree field in History and Philosophy of Science under the Department of Philosophy. Each Âparticipating student is assigned an adviser who approves the course of study. A total of 61 units are required for the sub-major, to be taken according to requirements below. Substitutions for the listed courses are allowed only by written consent of the under-graduate adviser for History and Philosophy of Science. Students are encouraged to consider doing honors work with an emphasis on the history and philosophy of science. Interested students should see the description of the honors thesis in Philosophy and consult their advisers for further information.

•   Three science courses (for example, biology, chemistry, physics) for 12 units.
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• The following Philosophy (PHIL) core courses must be completed with a letter grade by the end of the junior year:
  1. one from 50 (formerly 57), 150 (formerly 159), 151 (formerly 160A), 154 (formerly 169)
  2. 60 or 61
  3. 80
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• Three history of science courses.
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• Three philosophy of science courses, of which one must be PHIL 164.
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• Three additional courses related to the major, in philosophy or history, to be agreed on by the adviser.
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• At least six courses in the major must be completed at Stanford with a letter grade. Units for Tutorial, Directed Reading, or The Dualist (196, 197, 198) may not be counted in the requirement. No more than 10 units completed with grades of "satisfactory" and/or "credit" may be counted in the requirement.
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• Transfer units must be approved in writing by the Director of Undergraduate Study at the time of declaring a major. Transfer courses are strictly limited when used to satisfy major requirements.