9250 Acoustic Transparency Methods of Observing- Air- Waves 9310 



and beacon lights. Douglass, (Sir) J. N. E. 



I. P. 12 (1889) 425-. 

 cannon as. Fontaneau, . Bv. Mar. et Col. 



45 (1875) 444-. 

 coast. Stevenson, D. A. [1881] Sc. S. Arts 



T. 10 (1883) 490-. 

 direction, method of determining. Hardy, E. 



C. E. 123 (1896) 220-. 



, . Lodge, 0. J. Nt. 56 (1897) 154. 



experiments. Tyndall, J. E. S. P. 27 (1878) 



245-. 

 explosive, tests. Anon. A. der Hydrog. 7 



(1879) 378-. 

 and fog. Mohn, H. Christiania F. (1893) 



(Ov.) 39; Met. S. QJ. 19 (1893) 61. 

 Helmholtz resonators, use with. Hertz, A. 



A. der Hydrog. 5 (*1877) 356-. 

 for light-ships and headlands. Adie, R. [1866] 



Edinb. Sc. S. Arts P. 7 (1868) 91-. 

 and meteorology. Hazen, H. A. [1895] Am. 



Met. J. 12 (1895-96) 179- 

 night signals, to indicate route of shi] 



Fitte, (le It.) P. Ev. Mar. et Col. 118 ~ ' 



547-. 

 at sea. Hennessy, H. B. A. Ep. (1861) 



173-. 

 . Wigham, J. E. [1877] Dubl. S. J. 7 



(1878) 277-. 

 . Banare, (Capt.) A. Ev. Mar. et Col. 



97 (1888) 177-, 385- ; 99 (1888) 177-, 369-. 

 . Titi, A. Ev. Mar. et Col. 136 (1898) 



72-. 

 sound-reflector for (holophone). Stevenson, T. 



(C. E.) [1866] Edinb. Sc. S. Arts T. 7 



(1868) 204-. 

 theory. Mohn, H. A. der Hydrog. 20 (1892) 



85-, 117- ; 21 (1893) 249-; 23 (1895) 185-, 



226-, 264-, 362-. 

 uniform system for. Cuningham, A. [1866] 



Edinb. Sc. S. Arts T. 7 (1868) 174-. 

 wind's effect. Taylor, W. B. Am. J. Sc. 11 



(1876) 30-, 94-. 



Fog and vapour, effect on sound intensity. 



Challis, J. Ph. Mg. 47 (1874) 277-. 

 Gases, sound intensity in. Neyreneuf, . C. 



E. 98 (1884) 1264-. 

 , transmission in, distance. Neyreneuf, 



. C. E. 98 (1884) 980-. 

 Intensity of sound increased at night. Hum- 



boldt, F. H, A. von. A. C. 13 (1820) 162-. 

 . Berthold, A. A. Oken Isis 



(1836) 677-. 

 . Keferstein, A. Oken Isis 



(1838) 111-. 

 re meteorology. Voigt, J. H. Voigt 



Mg. 1 (1799) (Heft 4) 75-. 

 Liquids, heterogeneous, extinction of sound in. 



Baudrimont, E. 3. Phm. 31 (1857) 363-. 

 Modification of sound by distance. Challis, J. 



Ph. Mg. 35 (1849) 241-. 

 Porous bodies and sound. Rayleigh, (Lord). 



Ph. Mg. 16 (1883) 181-. 

 . Neyreneuf, . J. de Ps. 3 (1884) 



209-. 

 . Gezechus [Hesehus], N. Es. 



Ps.-C. S. J. 22 (Ps.) (1890) 233-; Exner 



Epm. 27 (1891) 471-. 



Earefied mountain air, sound intensity in. 



Martins, C. Par. S. Phlm. PV. (1849) 25-. 

 Eeflecting and transmitting powers of various 



substances. Mayer, A. M. [1872] Am. J. 



Sc. 5 (1873) 44-, 123-. 

 Sound conductivity and capacity. Gezechus 



[Hesehus], N. A. Es. Ps.-C. S. J. 25 (Ps.) 



(1893) 335- ; J. de Ps. 3 (1894) 572-. 



9255 Acoustics of Buildings. 



Menzel, C. A. Dingier 56 (1835) 190-. 

 Russell, J. S. B. A. Ep. (1843) (pt. 2) 96-. 

 Smith, T. R. [1860] Br. Archt. I. Pp. (1861) 



73-. 

 Burrows, H. W. Br. Archt. J. 2 (1895) 353-, 



423-. 

 Auditorium, effect of motion of air on acoustic 



properties. Jacques, W. W. Franklin I. J. 



76 (1878) 390-. 

 Buildings for music. Upham, J. B. Silliman 



J. 15 (1853) 215-, 348- ; 16 (1853) 21-. 

 Churches, etc. Orth, A. Z. Bauw. 22 (1872) 



189-. 

 Echoes in rooms, modes of dealing with. 



Stoney, G. J. Dubl. S. Sc. P. 4 (1885) 53-. 

 Prisons. Amst. Akad. Comm. Amst. Ak. Vs. 



6 (1898) 103-. 

 Public buildings. Reid, D. B. B. A. Ep. 



(1835) (pt. 2) 14-. 



. Henry, J. Am. As. P. (1856) 119-. 

 . Shadwell, (Rev.) F. Br. Archt. J. 6 



(1899) 134-. 

 Theatres, etc. Fetis, F. Brux. Ac. Bll. 16 



(1849) (pte. 2) 517-. 

 , . Ross,B. Hann. Archt.-Vr. Z. 42 (1896) 



19-. 



METHODS OF ANALYSIS AND 

 MEASUREMENT. 



9300 General. 



Acoustic laboratory and research, suggestions 



for. Bosanquet, R. H. M. Ph. Mg. 8 (1879) 



290-. 

 Calculating rule, use in acoustics. Gueroult, 



G. C. E. 74 (1872) 1403-. 

 Influence of motion on intensity of sound. 



Segnitz, E. Pogg. A. 85 (1852) 384-. 

 Periodic curves, analysis by Hermann's mould 



(Schablonen) method. Samojlov,A.F. Mosc. 



S. Sc. Bll. 96 (No. 2) (1901) 1-. 



9310 Methods of Illustrating and 

 Observing Air-Waves. 



Columns, liquid, affected by sound, structure. 



Ridout, R. H. Nt. 18 (1878) 604-. 

 Consonantal curves by phonograph and photo- 

 i. Hermann, L., & Matthias, F. Pfliig. 

 i. PI. 58 (1894) 255-. 



534 



