Architect and engineer . Good acoustics aie vital in a thea-ter. It is interesting to follow the de-velopment of Mr. Lansburghs studiesalong this line. His early experimentsin improving conditions in theSan Francisco Auditorium resultedin a circular cloth canopy, hung belowthe structural work of the octagonaldome. In the Kinema Theater atFresno he went a step farther, andIHit in a coved plaster ceiling, fromwhich was suspended a cloth canopyof dome shape. In the Golden Gat?and Hill street theaters he has in-stalled permanent canopies of plaster,preserving the flat dome shape, withl)ainted deco
Architect and engineer . Good acoustics aie vital in a thea-ter. It is interesting to follow the de-velopment of Mr. Lansburghs studiesalong this line. His early experimentsin improving conditions in theSan Francisco Auditorium resultedin a circular cloth canopy, hung belowthe structural work of the octagonaldome. In the Kinema Theater atFresno he went a step farther, andIHit in a coved plaster ceiling, fromwhich was suspended a cloth canopyof dome shape. In the Golden Gat?and Hill street theaters he has in-stalled permanent canopies of plaster,preserving the flat dome shape, withl)ainted decoration, provision for con-cealed lighting, and easy access from the attic space above. The result is marvelous. In the projection booth,averaging, say, 150 feet from the stage, every note of song or orchestracomes clear and true, with no echoes or discords from refractingsurfaces. The electric eciuipment, needless to say, is most complete and up todate. Both indirect and semi-direct lighting are used in the PORTION OF MEZZ.\NlMt; !? )K. LOEWSTATE THEATER. SAN FRANCISCO 50 THE ARCHITECT AND ENGINEER Concealed lights around the cornices or canopies of the main ceilings,or behind the beams of the proscenium arches, throw varying combina-tions of colors during special numbers. For full lighting these throwa flood of white light, in addition to the chandeliers. In the Hill street theater a blue moonlight glow is kept on thecove at outer edge of canopy, which gives ample light for finding seatsor exits, and does not interfere with pictures. A similar soft lightingunder the balcony comes from behind flat glass panels set in the ceiling,of pleasing shape and pattern. The stage lighting and wiring deserves a paper to itself. The greatswitchboards, with, instead of knife switches, large handles colored tomatch lights, pushing up and down or pulling out, control every pos-silile combination of lights, with ample space behind, screened oft, givingaccess to the wiring. Wit
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