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The American Architect 1900
Melody and the Origin of the Musical Scale
Effects of Air Currents and of Temperature
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absorbing material absorbing power air space Architects architectural acoustics audience auditorium Boston Music Hall building calculation ceiling coefficients of absorption consideration construction cubic meters curve cushions determined diagram discussion distance duration of audibility Ear of Dionysius echo effect experiment fact factor feet floor Fogg Art Museum Gewandhaus hyperbola inches initial intensity intensity of sound interesting interference investigation Jefferson Physical Laboratory lecture-room length loudness maxima and minima measure merely method minimum audible musical scale notes observations octave orchestra organ pipe paper phenomenon photographs pitch plaster on wire plaster on wood plotted possible problem produced proportional rate of decay reenforcement reflection residual sound resonance reverberation Sanders Theatre screen walls seats settees shown sound-wave source of sound square meter surface thickness tile tion tones trains of waves velocity vibration voice volume wall-surfaces whispering gallery wire lath wood lath wood sheathing