New York City Ballet

Violette Verdy and Arthur Mitchell, along with the New York City Ballet ensemble, perform in Brigit Cullberg's ''Medea.''

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.''

Diana Adams and Nicholas Magallanes perform with the New York City Ballet ensemble in George Balanchine's ''Orpheus.''

The New York City Ballet ensemble performs in George Balanchine's ''Orpheus.''

Isamu Noguchi's costume and set design for choreographer George Balanchine's dance ''Orpheus.''

Portrait of Adam Luders, principle dancer in the New York City Ballet.