9320 Measurement of Energy and Frequency of Sound-Waves 9320 



apparent, and energy, relation for different 

 pitches. Bosanquet, E. H. M. Ph. Mg. 44 

 (1872) 381- ; 45 (1873) 173-. 



, pitch, relation. Charpentier, A. Par. 

 S. Bl. Mm. 38 (1886) (C.R.) 248-. 



dependence on distance. Gezechus [Hesehus], 

 N. Ks. Ps.-C. S. J. 18 (Ps.) (1886) 268-; 

 J. de Ps. 7 (1888) 227-; Bs. Ps.-C. S. J. 28 

 (Ps.) (1896) 195- ; Fschr. Ps. (1896) (Ab. 1) 



estimation of differences in. Renz, T., & Wolf, 



A. Pogg. A. 98 (1856) 595-. 

 intensification of sound by transmission through 



water. Alison, S. S. E. S. P. 9 (1857-59) 



649-. 

 law of inverse squares in sound, experimental 



proof. Jacques, W. W. Am. Ac. P. 11 



(1876) 265-. 



Measurement. 



Heller, A. A. Ps. C. 141 (1870) 566-. 

 (Heller.) Seebeck,A. A. Ps. C. 142 (1871) 474-. 

 Moon, R. Ph. Mg. 44 (1872) 304- ; 45 (1873) 



38-, 361-. 



Hudson, H. Ph. Mg. 45 (1873) 160. 

 Bosanquet, R. H. M. Ph. Mg. 45 (1873) 215-. 

 Vierordt, K. von. Z. Bl. 14 (1878) 300- ; 17 



(1881) 361-. 



Bosanquet, R. H. M. Ph. Mg. 9 (1880) 174-. 

 Oberbeck, A. Halle Nf. Gs. B. (1880) 94-; 



(1881) 17; A. Ps. C. 13 (1881) 222-. 

 Tischer, E. Ph. Stud. 1 (*1883) 543-. 

 Vierordt, K. von. A. Ps. C. 18 (1883) 471-. 

 Wead, C. K. Am. J. Sc. 26 (1883) 177-. 

 Wundt, W. A. Ps. C. 18 (1883) 695-. 

 Vierordt, K. A. Ps. C. 21 (1884) 509-. 

 Starke, P. Ph. Stud. 3 (1886) 264-. 

 Stefanini, A. N. Cim. 22 (1887) 97-. 

 Grimsehl, E. A. Ps. C. 34 (1888) 1028- ; Cztg. 



Opt. 9 (1888) 217-, 229-. 

 Starke, P. Ph. Stud. 5 (1889) 157-. 

 Merkel, J. Ph. Stud. 5 (1889) 499-. 

 Stefanini, A. N. Cim. 26 (1889) 157-, 193- ; 



27 (1890) 5-, 97-. 

 Wien, M. A. Ps. C. 36 (1889) 834-. 

 (Stefanini.) Wead, C. K. Am. J. Sc. 41 (1891) 



232-. 



Cauro, J. Par. S. Ps. Se. (1899) 115-. 

 Henry, C. Ev. Sc.-Ind. 31 (1899) 156. 

 apparatus. Dvorak, V. (xn) Z. Instk. 3 



(1883) 127-. 

 , double. Sharpe, B. F. Science 



and Fechner's law. Norr, C. Z. Bl. 15 (1879) 



297-. 



instrument for. Webster, A. G., <& Sharpe, 

 . B. F. B. A. Ep. (1897) 584. 

 by microphone. Stern, G. A. Ps. C. 42 (1891) 



622-. 

 phonometer. Schafhdutl [Pellisov], C. E. 



Munch. Ab. 7 (1855) 499-; Munch. Gelehrte 



Az. 50 (1860) 65-. 

 phonometers and unison. Liesegang, R. E. 



Cztg. Opt. 12 (1891) 51-. 

 of relative intensities of sound. Mayer, A. M. 



[1872-79] Am. J. Sc. 5 (1873) 44-, 123- ; 



Am. J. Ot. 1 (1879) 87-. 



of relative intensities of sound, and of its direc- 

 tion. Mayer, A. M. Am. J. Sc. 11 (1876) 

 324-. 



and Weber-Fechner law. Merkel, J. Ph. 

 Stud. 4 (1888) 117-, 251-. 



of musical note, effects of periodic variation. 



Brown, A. C., <& Tait, P. G. Edinb. E. S. 



P. 9 (1878) 736-. 

 objective representation. Raps, A. A. Ps. C. 



36 (1889) 273-. 

 of sound produced in spaces filled with vapour. 



Biot, J. B. [1807] Arcueil Mm. Ps. 2 (1809) 



94-. 



FEEQUENCY. 



Mayer, A. M. Ph. Mg. 48 (1874) 266-, 371-, 

 445-, 513- ; Am. J. Sc. 8 (1874) 241- ; 9 

 (1875) 267-; 12 (1876) 329-; 47 (1894) 1-, 

 134. 



Chordometer and tonometer. Luca, P. A. de. 

 [1827] Mod. S. It. Mm. 20 (1828) (Mat.) 468-. 



Graphic methods for counting beats and vibra- 

 tions of microphonic capsule. Campanile, 

 F. Nap. Ac. At. 7 (1895) No. 4, 8 pp. 



Isochronism of sonorous vibrations, experi- 

 mental proof. Niaudet-Breguet, A. Les 

 Mondes 13 (1867) 656-. 



Low pitch, limit of audition for. (Toothed 

 wheel.) Savart, F. A. C. 47 (1831) 69-. 



MEASUREMENT. 



Bourcart, R. Mulhouse S. In. Bll. 58 (1888) 



726. 

 of high frequencies. Melde, F. A. Ps. C. 51 



(1894) 661- ; 52 (1894) 238-. 

 . Stumpf, C., & Meyer, M. A. Ps. C. 



61 (1897) 760-. 

 (Stumpf & Meyer). Appunn, A. A. 



Ps. C. 64 (1898) 409-. 

 (Appunn). Stumpf, C., & Meyer, M. 



A. Ps. C. 65 (1898) 641-. 

 ( ). Melde, F. A. Ps. C. 65 (1898) 



645-. 



. Melde, F. A. Ps. C. 67 (1899) 781-. 



. Schulze, F.A.. A. Ps. C. 68 (1899) 



869-. 



in Appunn 's pipes, optical and acoust- 

 ical methods. Schulze, F. A. A. Ps. C. 68 



(1899) 99-. 

 , method. Appunn, A. 



A. Ps. C. 67 (1899) 217-. 

 by difference tones. Stumpf, C. A. 



Ps. C. 68 (1899) 105-. 

 , unreliability. Appunn, A . 



A. Ps. C. 67 (1899) 222-. 



notes of whistle of adjustable pitch. Shaw, 

 W. N., & Turner, F. M. [1887] Camb. 

 Ph. S. P. 6 (1889) 90-. 



tuning fork pitch. Barker, G. F. [1878] 

 Am. As. P. 27 (1879) 118-. 



, chronoscopic method. Lang, V. 



von. Wien Ak. Sb. 93 (1886) (Ab. 2) 424-. 



Sensibility of ear. (Toothed wheel.) Savart, F. 

 A. C. 44 (1830) 337-. 



536 



