Bauhaus-Universität Weimar

On the sensations of tone as a physiological basis for the study of music. Translated with the author's sanction from the third German edition, with additional notes and an additional appendix by Alexander J. Ellis
Helmholtz, Hermann von
Reverted system, chords of the, 531. 
Reyher, ‘Mathesis musica,’ 162 note. 
Rich tones, 173. 
Robson, builder of General T. Perron et 
Thompson’s organ, 635. 
Rods, straight and elastic, have rather 
high inharmonic upper partials, when 
struck, 115. sound best when held at 
. the nodal points of their primes, 115. 
Bohrflöte, organ stop, 142. 
Roman architecture, 359. 
Roman Catholic Church music altered 
through Council of Trent, 378. 
Romans did not acknowledge thirds as 
consonances, 297- 
Romieu brings combinational tones to the 
notice of French savants, 353. 
Root of a chord defined, 480. 
[Root of duodene, 668. limits of variations 
of its original pitch, 67C.] 
Rough tones, 173. 
Roughness of beats, 259, [701]. of inter¬ 
vals shewn in table, 516-17. and dia¬ 
gram, 520. 
Riidinger’s investigations into ear, 203. 
Saccülus, 203. 
St. Paul’s Cathedral bell, 118. 
[St. Petersburg pitch, 780.] 
Salicional, organ stop, 142. 
[Salinas claims mean intonation, 784.] 
Salisbury’s MS. on Arabic music, 431, 
Sand, auditory, 203. 
[Sarti’s determinations of pitch, 780.] 
Sassanides, Persian dynasty, 430. 
Sauerwald constructs Helmholtz’s poly¬ 
phonic siren, 243. 
[Saunders’s tilting action, 659, and note.] 
[Sauveurs determinations of pitch, 
Savart, his determination of pitch of air 
chamber of violin, 137. his estimate 
. of 8 as vibrational number of lowest 
audible tone, 264. his rotating rod 
striking a note, developes strong upper 
partials, 266, note. 
Scäla tympani, 204. vestibuli, 203. 
Scales, 7- 
Scales, (musical) and space, their charac¬ 
teristic resemblances, 384. are esthetic, 
358. old ecclesiastical, 376. cannot be 
explained harmonically before harmony 
was known, 389. of five tones, their 
various forms, 399, [749]. of five, 
without Third or Seventh, Chinese 
example, 400. of seven tones, 403, [7 50]. 
their rational construction, 418. de- 
scending, minor, and mode of minor 
Seventh, 421. ascending, major and 
minor, 421. ascending, mode of Fourth 
and of minor Seventh, 422. descending 
mode of minor Sixth, 422. with harmony 
are the product of artistic invention, 568. 
[of quintal harmony, 749-51. of ter¬ 
tian harmony, 751-58. trichordal, 752.] 
Schafhäutl on bell, 118, note. 
Scheibler, his investigations of the beats 
of simple tones, 343. [his use of the 
term combinational tones, 230, and note, 
his system of tuning by beats, 253. his 
tonometer, 302, note. on just in¬ 
tonation, 636, note, finds that no just 
interval can be tuned accurately, 656. 
his determination of pitch, 779.] 
[Schneebeli, on the source of tone in the 
pipes, 708. his Luft-LawÆe or air 
reed, 709.] 
Schultze, Max, discovers ciliae on the 
epithelium of internal ear, 206. 
[Schulze, organ builder, once used only 
free reeds, now almost only striking 
reeds, 711-12.] 
Scotch handbell ringers, 119. scales, 397. 
examples of scale of five tones, 401, 402. 
Scotch music played on black keys of a 
pianoforte, 400, [and note]. 
Scratches of the bow when applied to 
make bodies sound which have inharmo¬ 
nic upper partials, consist of them, 120. 
Scratching on violins, its nature, 135. 
Screaming voice, 154. 
Second of the scale ambiguous, 427. su¬ 
perfluous, major and minor, examined, 
Seebeck, his siren, 18, 19. his objections 
to Ohm’s law, 93. his appeal to 
Ohm’s experiment on alteration of 
quality, 103. his investigations of tone 
of siren, 151. 
Seiler of Leipzig hears upper partials of 
voice in watchman’s call, 155. 
Seiler, Mme E., on singing and registers, 
166, [729]. on sensitiveness of dogs 
to e"", 169. [assists Prof. Mayer, 800.] 
[Séligmann, violoncellist, the intervals he 
played, 787.] 
Semicircular canals of ear, 201. 
Semitone, examined, 524. 
Semitones, the 12, compared with the 12 
months of the year by the Chinese, 347. 
[equal, their number in any interval, 
how calculated, 743.] 
Senqule, Arabic and Persian scale. 434, 
Sensation, 11. the immediate impression 
on our senses, 94. 
Sensations of hearing of interval defi¬ 
nitely measurable, 387. their value is


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