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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
BULLETIN No. 73
ENGINEERING EXPERIMENT STATION