NEW YORK TRIBUNE, Feb. 19, 1876  Page 4 has: "WALT WHITMAN'S POEMS" which are per-publication extracts from his famous work: "Two Rivulets," and are believed to be their first appearance.
Included are "Eidolons" "Freedom" and "To A Locomotive In Winter" with additional Whitman thoughts on his writing and on the Centennial. 
Twelve pages, very good condition.