_Auerbach, F._ “Akustik.” Winkelmann’s Handbuch der Physik, Vol. II,
1909. An encyclopædia of acoustics, the following topics applying
to the subject in hand: “Akustik der Gebäude,” pp. 580–584, with
references. “Nachhall und Echo,” pp. 565–569, with references.
_Blackall, C. H._ “Acoustics of Audience Halls,” Engineering Record,
Vol. 45, pp. 541–542, 1902. A paper recording the opinions of the
author with many references to acoustical properties of particular
audience halls.
_Cornelison, R. W._ “The Acoustical Properties of Rooms Particularly as
Affected by Wall Coverings,” 1905. A pamphlet describing the merits of
“Fabrikona” burlap as a sound absorber. H. B. Wiggin’s Sons Company,
Bloomfield, N. J.
_Eichhorn, A._ “Die Akustik Grosser Raüme nach Altgriechischer
Theorie.” Ernst and Korn, Publishers, Berlin, 1888. A discussion of
Greek buildings and acoustics, with applications to modern conditions.
_Eichhorn, A._ “Der Akustische Masstab für die Projectbearbeitung
Grosser Innen Raüme.” Published by Schuster and Bufleb, Berlin, 1899. A
continuation of the previous work.
_Exner, S._ “Uber die Akustik von Hörsälen und ein Instrument,
sie zu bestimmen.” Zeitschrift des Osterreichischen Ingenieur und
Architekten-Vereines, Vol. LVII, p. 141, March, 1905. Indicates his
opinion of good acoustical properties in a hall. Gives experimental
determination of reverberation.
_Fournier, Lucien._ “The Suppression of Echoes.” La Nature (Paris),
April 24, 1909. English translation given in “The Literary Digest,” New
York, May 29, 1909, p. 924. An account of the experiments of Gustav
Lyon in investigating the echoes in Trocadero Hall in Paris.
_Franklin, W. S._ “Derivation of Equation of Decaying Sound in a Room
and Definition of Open Window Equivalent of Absorbing Power.” Physical
Review, Vol. 16, pp. 372–374, 1903. A theoretical development of the
formula found experimentally by Sabine.
_Haege._ “Bemerkungen über Akustik.” Zeitschrift für Baumesen, Vol. IX,
pp. 582–594, 1859.
_Henry, Joseph._ “Acoustics Applied to Public Buildings,” Smithsonian
Report, 1856, p. 221.
_Hoyt, J. T. N._ “The Acoustics of the Hill Memorial Hall,” American
Architect, Vol. CIV, pp. 50–53, August 6, 1913. Discusses the design of
the hall and indicates how it fulfills his ideas of good acoustics.
_Hutton, W. R._ “Architectural Acoustics; Hall of Representatives,
U. S. Capitol, 1853.” Engineering Record, Vol. 42, p. 377, 1900. A
discussion of the cure of the faulty acoustics in the U. S. Hall of
Representatives.
_Jacques, W. W._ “Effect of the Motion of the Air Within an Auditorium
Upon Its Acoustical Qualities.” Philosophical Magazine (5), Vol. 7,
p. III, 1879. A record of experiments in the Baltimore Academy of
Music showing that the ventilating current had a marked action on the
acoustics.
_Jager, S._ “Zur Theorie des Nachhals,” Sitzungsberichten der Kaiserl.
Akademie der Wissenschaften in Wien. Matem.-naturw. Klasse; Bd. CXX,
Abt. Ha, Mai, 1911. An important paper giving a theoretical development
of Sabine’s formula showing the factors that enter into the constants.
Considers also the case of the reflection of sound from a thin wall and
also the case when it encounters a porous material such as a curtain.
_Lamb, Horace._ “The Dynamical Theory of Sound.” Published by Edward
Arnold, London, 1910. A more elementary treatment than Rayleigh’s
“Theory of Sound.”
_Marage._ “Qualites acoustiques de certaines sailes pour la voix
parlée.” Comptes Rendus, Vol. 142, p. 878, 1906. An investigation of
the acoustical properties of six halls in Paris.
_Norton, C. L._ “Soundproof Partitions.” Insurance Engineering, Vol.
4, p. 180, 1902. An account of experimental tests of the soundproof
qualities of materials that are also fireproof.
_Orth, A._ “Die Akustik Grosser Raüme mit Speciallem Bezug auf
Kirchen.” Zeitschrift für Bauwesen. Also reprint by Ernst and Korn,
Berlin, 1872. Assumes that sound waves behave like light waves.
Discusses, with detailed drawings, the paths of sound in the Zion
Church in Berlin and the Nicolai Church in Potsdam. Also gives his
opinion of the effect of surfaces and materials on sound.
_Rayleigh, Lord._ “Theory of Sound.” Two volumes, Macmillan, 1896.
The unsurpassed classic in the subject of acoustics. References to
architectural acoustics as follows: “Whispering Galleries,” Vol. II, §
287. “Passage of Sound Through Fabrics,” Vol. II, p. 311. “Resonance in
Buildings,” Vol. II, § 252.
_Sabine, Wallace C._ “Architectural Acoustics.” Engineering Record,
1900, Vol. 1, pp. 349, 376, 400, 426, 450, 477, 503. Published also
in book form and in American Architect, Vol. 68, 1900, pp. 3, 19, 35,
43, 59, 75, 83. An important series of articles giving the relation
between the time of reverberation in a room, the volume of the room,
and absorbing materials present. Gives table of absorbing powers
of substances, so that an architect can calculate in advance of
construction what the time of reverberation will be.
_Sabine, W. C._ “Architectural Acoustics,” Proc. of the Amer. Acad.
of Arts and Sciences, Vol. XLII, No. 2, June, 1906. A continuation of
the previous work, showing the accuracy of musical taste in regard to
architectural acoustics and also the variation in reverberation with
variation in pitch.
_Sabine, W. C._ “Architectural Acoustics,” Engineering Record, Vol. 61,
pp. 779–781, June 18, 1910. Discusses the case of flow of air in a room
and its effect on the acoustics. Concludes that the usual ventilation
system in a hall has very little effect.
_Sabine, W. C._ “Architectural Acoustics: The Correction of Acoustical
Difficulties.” The Architectural Quarterly of Harvard University,
March, 1912, pp. 3–23. An account of the cures of the acoustical
difficulties of a number of audience rooms, also a description of
further experiments on the absorbing power of different materials.
_Sabine, W. C._ “Theater Acoustics.” American Architect, Vol. CIV, pp.
257–279, December 31, 1913. Describes theater with model acoustics.
Discusses behavior of sound in a room and shows photographs of sound
waves in miniature rooms.
_Sabine, W. C._ “Architectural Acoustics. Building Material and
Musical Pitch.” The Brickbuilder, Vol. 23, pp. 1–6, January, 1914. A
continuation of previous work, describing absorbing powers of different
materials.
_Sharpe, H. J._ “Reflection of Sound at a Paraboloid.” Camb. Phil. Soc.
Proc., Vol. 15, pp. 190–197, 1909.
_Stewart, G. W._ “Architectural Acoustics.” Sibley Journal of
Engineering, May, 1903. Published by Cornell University, Ithaca, N. Y.
An account of an investigation leading to the cure of the acoustics of
Sibley Auditorium.
_Sturmhöfel, A._ “Akustik des Baumeisters.” Published by Schuster
and Bufleb, Berlin, 1894. An 87-page pamphlet on the acoustics of
rooms. Discusses effects of relief work in rooms on sound. Account of
experimental work. References to auditoriums.
_Tallant, Hugh._ “Hints on Architectural Acoustics.” The Brickbuilder,
Vol. 19, 1910, pp. 111, 155, 199, 243, 265. A series of articles
giving an exposition of the principles of the subject with practical
applications.
_Tallant, Hugh._ “Acoustical Design in the Hill Memorial Auditorium,
University of Michigan.” The Brickbuilder, Vol. XXII, p. 169, August,
1913. See also plates 113, 114, 115. A discussion of the acoustical
results obtained in this auditorium, a special feature being the action
of a huge parabolic reflecting wall surface over the stage.
_Tallant, Hugh._ “Architectural Acoustics. The Effect of a Speaker’s
Voice in Different Directions.” The Brickbuilder, Vol. 22, p. 225,
October, 1913.
_Taylor, H. O._ “A Direct Method of Finding the Value of Materials as
Sound Absorbers.” Physical Review, Vol. 2 (2), p. 270, October, 1913.
_Tufts, F. L._ “Transmission of Sound Through Porous Materials.” Amer.
Journal of Science, Vol. II, p. 357, 1901. Experimental work leading to
the conclusion that sound is transmitted through porous materials in
the same proportion that a current of air is.
_Watson, F. R._ “Echoes in an Auditorium.” Physical Review, Vol. 32,
p. 231, 1911. An abstract giving an account of the experiments in the
auditorium at the University of Illinois.
_Watson, F. R._ “Inefficiency of Wires as a Means of Curing Defective
Acoustics of Auditoriums.” Science, Vol. 35, p. 833, 1912.
_Watson, F. R._ “The Use of Sounding Boards in an Auditorium.” Physical
Review, Vol. 1 (2), p. 241, 1913. Also a more complete article in The
Brickbuilder, June, 1913.
_Watson, F. R._ “Air Currents and the Acoustics of Auditoriums.”
Engineering Record, Vol. 67, p. 265, 1913. A detailed account giving
theory and experimental work, with application to ventilating systems
in auditoriums.
_Watson, F. R._ “Acoustical Effect of Fireproofed Cotton-Flannel Sound
Absorbers.” Engineering News, Vol. 71, p. 261, January 29, 1914.
Results of experiments showing that cotton-flannel has practically the
same absorbing power after fireproofing as before.
_Weisbach, F._ “Versuche über Schalldurchlassigkeit, Schallreflexion
und Schallabsorbtion.” Annalen der Physik, Vol. 33, p. 763, 1910.
_Williams, W. M._ “Echo in Albert Hall.” Nature, Vol. 3, p. 469,
1870–71. Observations on the shape of Albert Hall in London and the
echoes set up.
_Editorial Notice._ “The Dresden Laboratory for Architectural
Acoustics.” American Architect, Vol. 102, p. 137, October 16, 1912.
States that a laboratory of applied acoustics is authorized in the
Dresden (Germany) Technische Hochschule, and that expert advice will
be furnished architects and others regarding problems of acoustics of
auditoriums.