In American poetry written since the World War one of the most significant new developments is now seen to be the fascination which animal life holds for the poet. In American periodicals during the last fifteen years, 236 writers have been publishing earnest and philosophical poems about animals. In 1933 and 1934 the newest poets—Frederick Prokosch, Frances Frost, Marie Welch, Audrey Wurdemann, Joseph Auslander, Laura Benét, and above all Robert Tristram Coffin—were writing of little else. And practically every one in the older groups, whether traditional or radical, simple or esoteric, has written occasional poems about them. Notably Robert Frost, Edna St. Vincent Millay, Elinor Wylie, Hart Crane, Robinson Jeffers, Padriac Colum, and D. H. Lawrence have dealt with the subject repeatedly.