L. RAVEN-HILL. "THE WATCHERS OF THE SEAS." Recruiting poster for the British Navy, 1915. [Illustration: 10] [Illustration: 11] 12. BERNARD PARTRIDGE. 1389-1916. "KOSSOVO DAY IS THE SERBIAN NATIONAL DAY." Poster of a British "Flag Day." 25th June, 1916. 13. JOHN HASSALL. Poster of the Belgian Canal Boat Fund. 14. JOHN HASSALL. "MUSIC IN WAR-TIME." Grand Patriotic Concert, Albert Hall. Poster of the Professional Classes War Relief Council. 15. BERNARD PARTRIDGE. "HAVEN." Poster of the British Women's Hospital Fund, appealing for subscriptions toward the "Star and Garter" home for men disabled by the War. [Illustration: 12] [Illustration: 13] [Illustration: 14] [Illustration: 15] 16. PAUL NASH. Poster of an Exhibition of War Paintings and Drawings by Paul Nash at the Leicester Galleries, London, May, 1916. 17. SIR WILLIAM ORPEN, R.A. Poster of an Exhibition of War Paintings and Drawings executed by Major William Orpen on the Western Front, at Agnew's Galleries, London, 1918. 18. NORMAN WILKINSON. "THE DARDANELLES." War Sketches in Gallipoli. Poster of an Exhibition at the Fine Art Society, London, 1915. 19. FRANK BRANGWYN, R.A. "AT NEUVE CHAPELLE." "YOUR FRIENDS NEED YOU. BE A MAN." British Recruiting Poster. [Illustration: 16] [Illustration: 17] [Illustration: 18] [Illustration: 19] 20. POULBOT. "POUR QUE PAPA VIENNE EN PERMISSION, S'IL VOUS PLAIT." (So that papa may come on leave, if you please.) Poster of the French "Flag Days" in Paris, 25th and 26th December, 1915. [Illustration: 20] 21. AUGUSTE ROLL. "POUR LES BLESSÉS DE LA TUBERCULOSE." (For those wounded by tuberculosis.) Poster of the National Day for the Benefit of ex-Soldiers suffering from Tuberculosis. Paris, 1916. [Illustration: 21] 22. D. CHARLES FOUQUERAY. "LE CARDINAL MERCIÉR PROTÉGE LA BELGIQUE." (Cardinal Mercier protects Belgium.) Poster published in Paris, 1916. [Illustration: 22] 23. JULES ABLE FAIVRE. "ON LES AURA!" (We shall get them!) Subscribe. Poster of the Second National Defence Loan. [Illustration: 23] 24. JULES ABEL FAIVRE. "SAUVONS-LES!" (Let us save them!) Poster of the National Day for the benefit of ex-Soldiers suffering from tuberculosis. [Illustration: 24] 25. D. CHARLES FOUQUERAY. "LA JOURNÉE SERBE, 25 JUIN, 1916." Poster of a French "Flag Day" for the Serbian Relief Fund, on the Anniversary of the Battle of Kossovo. [Illustration: 25] 26. G. CAPON. "LA FEMME FRANÇAISE PENDANT LA GUERRE." (French Women during the War.) Poster of the Kinematograph Section of the French Army. [Illustration: 26] 27. SEM. "POUR LE DERNIER QUART D'HEURE ... AIDEZ-MOI!" (For the last quarter of the hour ... help me!) Poster of the French War Loan, 1918. [Illustration: 27] 28. THÉOPHILE ALEXANDRE STEINLEN. Poster of the French "Flag Days," 25th and 26th December, 1915. Organized by Parliament. 29. MAURICE NEUMON.