0825 Seismoscopes 



Seismometry (methods and results). Swing, 

 J. A. Nt. 30 (1884) 149-, 174-. 



. Johmt(m-Lavis,H.J. Nt. 30 (1884) 608-. 



. Swing, J. A. [1884] Nt. 31 (1885) 4-. 



. Johnston-Lams, H. J. [1884] Nt. 31 

 (1885) 53-. 



. (Movements of the ground, and proposed 

 observations on Ben Nevis.) Ewing, J. A. 

 B. A. Kp. (1885) 920-. 



. Ewing, J. A. [1888] B. I. P. 12 (1889) 

 361-. 



as applied to railway trains. Milne, J. 

 [1889] Jap. Seism. S. T. 15 (1890) 23-. 



, 5 mile water level in. Mayet, P. Seism. 

 J. Jap. 18 (1893) 115-. 



, neglected principle that may be employed 

 in. Perry, J., & Ayrton, W. E. Jap. As. 

 S. T. 5 (1877) (Pt. 1) 181-. 



, steady points for. Gray, T. (xn) Jap. 

 Seism. S. T. 3 (1881) 1-, 9-. 



Seismomicrophone with photographic regis- 

 tration. Baratta, M. Bv. Sc.-Ind. 22 (1890) 

 218-. 



Mallet, E. B. A. Bp. (1851) 272-. 



(Spia sismica.) Mensini,J. (xii) Bv. Sc.-Ind. 



7(1875)117-. 

 ( ortosismica, for vertical earthquakes.) 



Mensini, J. (xn) Bv. Sc.-Ind. 7 (1875) 166-. 

 Bertelli, T. Em. N. Line. At. 34 (1881) 67-. 

 Anon. Bv. Sc.-Ind. 21 (1889) 221-. 

 Bovieri, F. Em. N. Line. At. 46 (1893) 45-. 

 Agamennone, G. Em. B. Ac. Line. Bd. 8 



(1899) (Sem. 1) 41-. 



bifilar. Egidi, G. Bll. V. It. 14 (1887) 36-. 

 Brassart apparatus with disc. Brassart, E. 



Bll. V. It. 12 (1885) 103-. 

 electric. Grablowitz, G. Bv. Sc.-Ind. 25 



(1893) 198-. 



. Agamennone, G. Bm. B. Ac. Line. Bd. 

 9 (1900) (Sem. 1) 204-. 



improved form. Herschel, A. S. N. Eng. I. 



Mn. E. T. 37 (1888) 101-. 

 magnetograph as. Mendenhall, T. C. Am. 



As. P. (1890) 89. 

 mercury, Cavalli (1784). Baratta, M. [1896] 



Pisa S. Tosc. At. (PV.) 10 (1895-97) 191-. 



, contributions to history. Baratta, M. 

 Pisa S. Tosc. At. (PV.) 10 (1895-97) 243- : 

 11 (1897-98) 84-. 



and seismological investigations. Mendenhall, 

 T. C. Am. J. Sc. 35 (1888) 97-. 



Trifilar gravimeter. Schmidt, A. Btr. 



Geops. 4 (1900) 109-. 

 Tromoseismometer. Bertelli, T. Bm. N 



Line. At. 27 (1874) 194-. 

 Vibrations, seismic, and seismometric indica- 



tions. Bertelli, T. Bm. N. Line. At. 42 



(1889) 95- ; Bm. N. Line. Mm. 6 (1890) 67-. 



Spring balance. Om, . Sch. Gs. Vh 



(1841) 212-. 

 for accurate weighing. Jolly, P. Munch. 



Sb. (1864) (1) 162-. 



Measurement of Force 0825 



Spring balance, improved, for Prony brakes. 



Wettler, A. Elekttech. Z. 19 (1898) 658-. 

 , new. Steinheil, C. A. von. Munch. 



Gelehrte Az. 8 (1839) 817-. 

 , form. Linebarger, C. E. Ps. Bv. 



11 (1900) 110-. 



Springs, use in apparatus for delicate measure- 

 ments. Witz, . Brux. S. Sc. A. 21 (1897) 

 (Pt. 1) 19-. 



Steam-engine, measurement of useful force in, 

 without brake. Mahistre, . C. B. 46 

 (1858) 39-. 



Suspension, bifilar, measurement by. Stahelin, 

 C. Sch. Gs. N. D. 13 (1853) vi + 204 pp. 



, , mechanical temperature compensation. 

 Liznar, J. Z. Instk. 8 (1888) 13-, 76. 



, trifilar, use in physical apparatus. Thomp- 

 son, S. P. B. A. Ep. (1897) 588. 



, unifilar, value of torsional couple. Limb, 

 C. C. B. 114 (1892) 1057-. 



Thermodynamometer, description and theory. 

 Berruti, G. Tor. At. Ac. Sc. 7 (1871-72) 

 485-. ' 



Torsion balance, American. Dittmar, W. Z. 

 Instk. 10 (1890) 433-. 



, Coulomb's. Muncke, G. W. Pogg. A. 



17 (1829) 159- ; 18 (1830) 239-; 29 (1833) 



, , modification. Gieseler, . Bonn 



Niedr. Gs. Sb. (1891) 83. 

 , counteracting change of level in. Kent, 



W. Am. As. P. (1886) 116. 

 , effect of bodies at various temperatures 



near arm. Lenz, E. Pogg. A. 25 (1832) 



- .mirror for use with. Kent, W. Am. As. 



P. (1886) 116-. 

 , new. Springer, A. Am. I. Mn. E. T. 



12 (1884) 569-. 



, experiments. Reich, F. Leip. Ab. 



Mth. Ps. 1 (1852) 383-. 



, oscillations, theory. Brandes, H. W. 

 Voigt Mg. 12 (1806) 300-. 



, resistance of air. Bailie, J. B., <& 

 Cornu, A. C. B. 86 (1878) 571-. 



, terms proportional to square of displace- 

 ment in. Bailie, J.B., & Cornu, A. C. B 

 86 (1878) 1001-. 



, unifilar. Tammen, H. G. Carl Bpm. 



18 (1882) 348-. 



balances. Springer, A. B. A. Ep. (1887) 

 636. 



, and elasticity of glass threads. Ritchie, 



W. Phil. Trans. (1830) 215-. 

 , . Goode,W.H. Franklin 



I. J. 24 (1839) 367-. 



of fine threads. Bouasse, H. A. C. 11 

 (1897) 433-. 



method of determining small weights. 

 Loewenherz, L. (xii) Z. Instk. 1 (1881) 



Torsional moments, method of determining. 



Negbaur, W. A. Ps. C. 41 (1890) 631-. 

 Trains, energy stored in, at different velocities. 



Dudley, P. H. Am. Eng. & Eailroad J. 73 



(1899) 366. 

 , tractive force, resistance, and acceleration. 



Mallock, A. B. A. Ep. (1900) 877-. 



128 



