E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
E04H3/00—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons
E04H3/10—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons for meetings, entertainments, or sports
E04H3/22—Theatres; Concert halls; Studios for broadcasting, cinematography, television or similar purposes
The Development of Architectural Acoustics: The application of the science of acoustics to architectural designs has produced greatly improved halls for both speech and music
photographic investigation. The portrait combination is not intended in any way to compete with the astrographic telescopes, or with any of the larger photogra-phic refractors or reflectors. It must be considered as supplemental