March, 1925 Vol. V No. 12 25 Cents A Copy . * ~ AI ACADEMYOf MOnON PICTURE ARTS AND SCIENCES nm~!ican Cinematoqrapher Published , by the American Society of Cinematographers, . This Month PROJECTORS (Article two) By Earl J. Denison PREPARING TO FILM "THE IRON HORSE." By Geo. Schneiderman, A. S. C. f,- CAUSE OF SPEEDY PROJECTION By Paul P. Perry, A. S. C. THE CRITIC AND CINEMATOGRAPHY By Bert Glennon, A. S. C. 1 PUBLISHED IN HOLLYWOOD CALIFORNIA Inc.