Harvard's undergraduate student body may not be as pre-professional as some people claim, but looking at this semester's top ten classes, you'd never know. Social Analysis 10, "Principles of Economics," once again topped the list of high-enrollment courses, with Ronald Dworkin's "Philosophy of Law" coming in not far behind. Biology 7a--the introductory bio course--rounded out the popularity troika with 422 students enrolled.

Despite its comparative popularity, Soc Anal 10 currently has only 937 students enrolled--nearly 100 fewer than last year. Otto Eckstein, Warburg Professor of Economics, attributed the decline to two false fire alarms in Sanders Theater that interrupted the course's first lecture last fall.

Dworkin, a visiting professor of Philosophy from Oxford, said last week he originally intended to teach Moral Reasoning 21 as a discussion course, but moved the class to Sanders Theatre when nearly 800 students showed up.

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Francis H. Burr, a member of the Harvard Corporation for 28 years, will retire this spring, leaving the first vacancy in two years on the University's seven-man governing board.

The Corporation's six remaining members will begin a search for Burr's replacement this spring and hope to choose a new Corporation member within a year.

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Fifteen appeared to be the magic--or tragic--number last week, as University officials announced percentage tuition hikes of that amount at the College and six Harvard graduate schools.

The cost of one year at the College will rise $1560 to $12,100 next year for tuition, room and board. Tuition fees at Harvard's other schools will include: $8000 at the Business School, $5310 at the Divinity School, $7350 at the School of Public Health, $10,250 at the Medical School, $7900 at the Kennedy School of Government, and $8195 at the Graduate School of Arts and Sciences.

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In the culmination of a seven-month debate, the constitutional convention last week voted to strike a guaranteed minority representation clause from its final plan for a new student government.

Although the turnaround--initiated in an effort to garner necessary Faculty support for a new Undergraduate Council--was unanimously approved by convention members, student leaders criticized the final proposal for its "unrepresentative and unfair" treatment of minorities.

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Speaking at a Harvard Club of Boston luncheon, Sen. Paul Tsongas (D-Mass.) warned last week that a failure on the part of the Reagan Administration to "adequately deal with" nuclear arms control could lead to the demise of NATO and the "Finlandization" of Europe.

Tsongas joined a recent chorus of voices--including those of West German Chancellor Helmut Schmidt and French President Francois Mitterrand--in stating that loose talk from U.S. government officials about the "winnability" and "containability" of nuclear war has severely limited the credibility of the Administration among Europeans.