Concert

New House Opera Theatre Ensemble. Perform "Camptown Ladies Sing the Songs of the Civil War." Adams House Lower Common Room, 8 p.m. $7.

Mendelssohn String Quartet. Performs works by Smetana, Rands and Janacek. Paine Concert Hall, 8 p.m. Admission is free but passes from the Holyoke Center Ticket Office are required. Call 495-2663 for more information.

North House Music Society. Presents a program of Bach cantatas. North House Dining Hall, 8 p.m. Free.

Conference

University and School Connections: Historical Perspectives. A celebration of the Graduate School of Education's 75th birthday includes talks by Vito Perrone, director, Harvard Teacher Education Programs; and Arthur Powell, former associate dean, GSE, senior associate, Annenberg Institute for School Reform. Gutman Conference Center, 10:30 a.m.

Dance

A Spring Thing. A medley of original choreography, contemporary and classical ballet presented by the Harvard-Radcliffe Ballety Company. Agassiz Theater, 8 p.m. $5 for students.

Film

Harvard Film Archive. Carpenter Center for the Visual Arts. 24 Quincy St. 495-4700. $5 for students, unless a special event. "Judex 1" at 7 p.m. "The Maestro Sworn to the Drum" at 9 p.m.

Poetry and prose

A Reading by Stuart Dischell and Marie Howe. Lamont Forum Room, 5 p.m.

Theatre

A Streetcar Named Desire. By Tennessee Williams. Agassiz Theatre, 8 p.m. $5 for students.

Guys and Dolls. Cabot House, 8 p.m. $5 for students; $3 for Cabot residents. Call 495-8749 for more information.