less, the problem of this principle, it was piped caused serious trou- ble to represent almost any medium, with the local public. MUSIC BIBLIOGRAPHY.—E. Pottier, Le Musée du Louvre pendant la Grande Guerre (1916); A. P. Rowe. Scientific Officer, Air Ministry, London. Aerodrome. IRVING FIsHER, Pu.D. Professor of Engineering, University of Paris have enabled these four posters, by Faivre, who designed the “ places ” of july