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UNIVERSITY OF ILLINOIS BULLETIN

Issued Weekly

Vol. XI MARCH 16, 1914 No. 29

Entered as second-class matter Dec. 11, 1912, at the Post Office at Urbana, Ill., under the Act of Aug. 24, 1912.

ACOUSTICS OF AUDITORIUMS

BY
F. R. WATSON

UNIVERSITY OF ILLINOIS.       CHARTERED 1867.

BULLETIN No. 73
ENGINEERING EXPERIMENT STATION

Published by the University of Illinois, Urbana

Price:  Twenty Cents

European Agent
Chapman and Hall, Ltd., London


The Engineering Experiment Station was established by act of theBoard of Trustees, December 8, 1903. It is the purpose of theStation to carry on investigations along various lines of engineeringand to study problems of importance to professional engineers andto the manufacturing, railway, mining, constructional, and industrialinterests of the State.

The control of the Engineering Experiment Station is vested in theheads of the several departments of the College of Engineering. Theseconstitute the Station Staff and, with the Director, determine the characterof the investigations to be undertaken. The work is carried onunder the supervision of the Staff, sometimes by research fellows asgraduate work, sometimes by members of the instructional staff of theCollege of Engineering, but more frequently by investigators belongingto the Station corps.

The results of these investigations are published in the form ofbulletins, which record mostly the experiments of the Station’s own staffof investigators. There will also be issued from time to time in theform of circulars, compilations giving the results of the experiments ofengineers, industrial works, technical institutions, and governmentaltesting departments.

The volume and number at the top of the title page of the coverare merely arbitrary numbers and refer to the general publications ofthe University of Illinois; either above the title or below the seal is giventhe number of Engineering Experiment Station bulletin or circular,which should be used in referring to these publications.

For copies of bulletins, circulars, or other information address theEngineering Experiment Station, Urbana, Illinois.

Fig. 1. Auditorium, University of Illinois.

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