The Crimson Key's annual All-College Weekend begins tonight with events at all of the Houses but Eliot. Dunster and Winthrop are both having Cabaret Dances, while Kirkland an Leverett will present a combined barn dance.

Dudley is offering an informal dance, Lowell, the second performance of its opera, "King Arthur," and Adams, a Vaudeville Show and Dance. The leading event of the Weekend will be the Artist's Ball, a formal at the Indoor Athletic Building Saturday night.