9010 Periodic Motion 



Sand pendulum, Lissajous's. Weinberg, M. 

 Briinn Vh. 19 (1881) (Ab.) 11-. 



Graphic exhibition. Schonemann, P. Z. Nw. 



12 (1875) 288-. 

 Lecture experiment. Felici, R. N. Cim. 16 



(1884) 160. 

 Mechanical delineation. Crova, A. J. de Ps. 



10 (1881) 211-. 

 Method. Kundt, A. Ziir. Vischr. 14 (1869) 



121-. 

 . Frolich, O. Berl. Ps. Gs. Vh. (1889) 31-; 



Elekttech. Z. 10 (1889) 345-, 369-. 

 Methods. Terquem, A. J. de Ps. 1 (1872) 



255-. 



. Costing, H. J. A. Ps. C. 33 (1888) 415-. 

 Microstroboscopic experiment. Mach, E. (xii) 



Lotos 23 (1873) 145-. 

 Projection. Terquem, A. J. de Ps. 6 (1877) 



332-. 

 . Mann, J. D. Manch. Lt. Ph. S. P. 17 



(1878) 91-. 

 , with phase-adjustment. Crova, A. As. 



Fr. C. K. 10 (1881) 340-. 



Maintenance of vibrations by forces of double 



frequency. Rayleigh, (Lord). Ph. Mg. 24 



(1887) 145-. 

 Microphone measurements. Cauro, J. Eclair. 



Elect. 19 (1899) 295-, 333-, 410- . 

 Periodic motions, very rapid, new method of 



observing. Plateau, J.A.F. Brux. Ac. Bll. 



3 (1836) 364-. 

 Phonic wheel for regulating synchronism of 



motions. La Cour, P. C. E. 87 (1878) 



499-; (xn) Sk. Nt. Mot. F. (1880) 133- ; 



Tel. J. 21 (1887) 529. 

 Eectilinear vibration figures, analysis. Krigar- 



Menzel, O. A. Ps. C. 49 (1893) 545-. 

 Eesultant of large number of vibrations of same 



pitch and of arbitrary phase. Rayleigh, (Lord). 



Ph. Mg. 10 (1880) 73-. 



Spectroscopic examination of longitudinal vi- 

 brations of glass rod. Mach, E. D. Nf. Tbl. 



(*1871) 49, 159 ; A. Ps. C. 146 (1872) 316-. 



and stroboscopic examination of vibrations. 

 Mach, E. Halle Z. Nw. 40 (1872) 402-, 

 460-. 



Stroboscopic discs, principle, application. 

 Topler, A. A. Ps. C. 128 (1866) 108-. 



and photographic investigation of vibra- 

 tions of strings and rods. Oosting, H. J. 

 [1895] Mbl. Nt. (1895-96) 87-. 



Tuning forks, determination of rate of vibration. 



Clarke, (Lt.) G. S., & M'Leod, H. [1879] 



Phil. Trans. 171 (1880) 1-. 

 , Konig's, and French "diapason normal." 



Ellis, A. J. Nt. 16 (1877) 85, 227 ; 17 (1878) 



26. 

 , standard, vibrations. Konig, R. A. Ps. 



C. 9 (1880) 394-. 

 Vis viva of compound vibrations, resolution. 



Saint Venant, Barre de. C. E. 75 (1872) 



1425-, 1567-. 



Methods of Experiment 9020 



9020 Methods of Maintaining, 

 Observing- and Measuring Vi- 

 brations. (For Radiophone see 

 4200.) 



Bifilar suspension, apparatus for demonstration. 

 Oberbeck, A. N.-Vorp. Mt. 19 (1888) 84-. 



Change of pitch, gradual, apparatus for pro- 

 ducing. Stern, L. W. Berl. Ps. Gs. Vh. 

 (1897) 42-. 



Chronoscope, electric, with vibrating fork and 

 revolving cylinder. Valerius, H. Brux. 

 Mm. Cour. 8, 17 (1865) (No. 2) 13 pp. 



Experiment. Mach, E. (xn) Lotos 23 (1873) 

 145-. 



Figures, acoustic, and forms assumed by groups 

 of particles upon vibrating surfaces. Fara- 

 day, M. Phil. Trans. (1831) 299-. 



exhibiting motion of vibrating bodies. Clarke, 

 (Lt.) G. S., d- M c Leod, H. [1877] E. S. P. 

 26 (1878) 157-. 



Flames in acoustics. Villari, E. (xi) N. Cim. 



1 (1869) 352-. 



. Waha,M.de. Lux. I. Pb. 15 (1875) 233-. 



Hydrodiapasons. Declmrme, C. [1882] (xii) 



Amiens Ac. Mm. 9 (1883) 183- ; (ix) C. E. 



95 (1882) 597-. 

 Kirchhoff's principle, model to illustrate. 



Hallock, W. [1899] N. Y. Ac. A. 12 



(1899-1900) 620. 



Manometer (maximum and minimum for pres- 

 sure changes in vibrating air columns). 



Kundt, A. A. Ps. C. 134 (1868) 563-. 



(new form). Bartoniek, G. Termt. Kozl. 

 20 (1888) (Suppl.) 140- ; Mth. Nt. B. Ung. 

 6 (1889) 401-. 



(Kundt's). Trusevic,A. A. Vars. S. Nt. Tr. 

 (1897) (C. R., Ps. C.) Fasc. 3, Mem. 7, 4 pp. 



. Svedelius, G. E. N. Ts. Fs. K. 3 (1898) 

 155- ; Fschr. Ps. (1898) (Ab. 1) 683-. 



MANOMETRIC FLAMES. 



Konig, R. A. Ps. C. 146 (1872) 161 -. 

 determination of pitch by. Doumer, E. C. E. 



103 (1886) 340-. 



direct. Kohn, J. A. Ps. C. 151 (1874) 321-. 

 photography. Hallock, W. Am. As. P. (1894) 



112-. 



. Merritt, E. Ps. Ev. 1 (1894) 166-. 

 . Marage, . C. E. 124 (1897) 81 1-. 

 _. Nichols, E. L., <& Merritt, E. Am. As. 



P. (1897) 124; Ps. Ev. 7 (1898) 93-. 

 . Nichols, E. L. Nt. 59 (1898-99) 320-. 

 , study of hearing trumpet by. Marage, . 



Par. S. Ps. Se. (1897) 74-. 



_, overtones by. Doumer, E. C. E. 105 



1887) 222-. 

 __; _ _ vowels by. Marage, . Par. S. Ps. 



Se. (1897) 187-. 

 singing. Martini, T. (xn) Ev. Sc.-Ind. 11 



(1879) 71-. 

 , projection. Valerius, H. Les Mondes 9 



(1866) 14. 



507 



