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THE FUTURE 363
is handled much more easily in the projection booth, and experience indicates that fewer surface noises result when this method is used.
The sound motion picture has met with greater success in theatres of medium seating capacity (2,500 to 3,500 seats), and this fact may have a marked effect upon the design of newer theatres; for while satisfactory reproduction has been attained in theatres of huge seating capacities, yet the problem in such houses is so formidable as to require constant and minute supervision. Auditoriums, it goes without saying, will be specially designed with the greatest regard to acoustical conditions, and we may well expect — except in theatres located in the very largest communities, where stage entertainment may be expected at some time to be a part of the programme — to see the elimination of the present size stage with its lofty gridiron. Projection booths have already become the subjects of special study by theatre architects and engineers. In some of the Fox-West Coast Theatres, for example, a special observer's box is provided in a balcony close to the booth, so that projectionists may see and hear everything just as it comes to the audience. Experiments are now being made looking to the substitution of remote controls for the present methods of booth operation. Such controls, were they mounted on a panel, would make it possible for the projectionist to control the volume and tonal quality of sound from the vantage point of a place in the audience.
In a different direction good technical progress has already been made and reported by the Society of Motion Picture Engineers. Such accomplishments have been effected in connection with colour photography, motion picture cameras, laboratory equipment, illuminants, projection room equipment, stereoscopic pictures, and television. No one can doubt that with the development of sound synchronization science has entered the entertain