The Harvard Lampoon will mark its 100th anniversary with a three-day celebration for Lampoon alumni this weekend, Lampoon President-elect Louis G. Shenk '76-3 said yesterday.

The Lampoon seceded yesterday from the United States, and the act will serve as the theme for the celebration.

One of the Lampoon's first acts of independence was to apply to the United Nations for membership as a sovereign state, with a telegram to U.N. Secretary General Kurt Waldheim.

The telegram was signed, "Stephen Fenichell, Ambassador Plenipotentiary, People's Emerging Republic of Lampoon."

The festivities will begin Friday morning with a ride on an antique train for Lampoon alumni from Philadelphia to Boston, he said.

Lampoon President George Rohr '76 said yesterday the total cost for the weekend would be "in the seven figure range," with "all seven figures to the left of the decimal point."

Lampoon officer Mark P. O'Donnell '76 later expressed doubt over that estimate, saying, "I'd probably put the decimal point after the first five figures."

Highlights of the celebration will include the presentation of the Lampoon award for "Harvard's funniest professor of the century" on Saturday afternoon and an extensive Soldier's Field fireworks display that evening. The award will be presented at a luncheon at Boston's Copley Plaza Hotel.

The Lampoon has threatened to end its Saturday night fireworks display with "a demonstration of the Lampoon's nuclear abilities if the U.N. ignores the student organization's demand for member status."