William Butler Yeats 
In the Seven Woods 

"In the Seven Woods", masterpiece written in 1903, is Yeats's first twentieth-century poetry collection. Its fourteen poems show him moving steadily away from the decisively Romantic diction of his earlier work. Here we hear a poetic voice that is at once more individual, colloquial and dramatic than previously. In addition, several poems sound a note of bitter lamentation over the marriage in 1903 of Maud Gonne, Yeats's great love and muse, to John Mac Bride.