(3) Major School and Electives-at-large.
At least two years before the date of expected graduation the
candidate must select one of the Schools of Natural or Mathematical
Science as his Major, or principal, School; and during
the remainder of his candidacy must pursue work in that School.
As subsidary to the principal subject thus chosen, he shall
pursue such other courses within the limits of the electives-atlarge
(see below) as are deemed most important in his case by
the professor or professors in charge of his major school, and
approved by the Academic Faculty.
Each elective-at-large consists of a B Course, or of a C Course
of which the precedent B Course has been completed. After
five B Courses have been chosen in accordance with Section
(1), (b), of these regulations, the six electives-at-large required
are to be selected, (subject to the restrictions detailed in the
first paragraph of this section), from the lists of B and C
Courses described under the head of the Academic Schools,
pp. 115-157.
