New York City Ballet

Edward Villella of the New York City Ballet performs with Violette Verdy in ''La Source.''

Edward Villella of the New York City Ballet performs with Violette Verdy in ''La Source.''

Melissa Hayden and Edward Villella, both of the New York City Ballet, perform together in George Balanchine's ballet ''A Midsummer Night's Dream.''

Melissa Hayden and an unidentified dancer, both of the New York City Ballet, perform together in George Balanchine's ballet ''A Midsummer Night's Dream.''

Melissa Hayden and Edward Villella, both of the New York City Ballet, perform together with the ensemble in George Balanchine's ballet ''A Midsummer Night's Dream.''

Two photographs on one sheet: Balerina Kay Mazzo of the New York City Ballet performs in George Balanchine's ''Nutcracker'' and informal portrait of Mazzo backstage at the same performance.

Edward Villella of the New York City Ballet performs with an unidentified partner in George Balanchine's ''Nutcracker.''

Portrait of ballerina Patricia McBride, principal dancer with the New York City Ballet.

Balerina Kay Mazzo of the New York City Ballet performs with Peter Martins in George Balanchine's dance ''Stravinsky Violin Concerto'' which aired on PBS television stations as part of ''Choreography by Balanchine, Part 2'' on Great Performances.

Two images on one sheet: (Left) Edward Villella and Patricia Mc Bride, both of the New York City Ballet, perform in Geroge Balanchine's ''Tarantella'' in Berlin, Germany as part of the PBS television seris ''Great Performances. (Right) Informal portrait of New York City Ballet choreographer George Balanchine.