DUBLIN.- When Jack Butler Yeats died in 1957 he left the contents of his studio to his niece, the artist Anne Yeats who carefully catalogued and managed her uncle’s sketchbooks, library, correspondence and belongings until she presented the bulk of the material to the National Gallery of Ireland in 1996. On May 30 next Whyte’s will offer an exceptional opportunity to step through the portal of Yeats’ studio – the private creative space of an artist who was particularly secretive about his working methods. This assortment from the artist’s studio includes Yeats’ paint-box, as listed by Anne, several palettes, brushes, palette knives and a number of paint boxes which belonged to the artist. Other interesting items include one of Yeats’ address books which lists many of his close friends and contacts such as Padraic and Mary Colum in New York, the writer and critic Patrick Kavanagh and the English art