0140 Densities 



Measurement of Time ; Chronographs 0150 



Oxygen and nitrogen and hydrogen. Leduc, A. 

 C. B. 113 (1891) 186-. 



; and composition of air. 

 Leduc, A. J. de Ps. 1 (1892) 231-. 



, liquefied. Cailletet, L., <& 



Hautefeuille, P. C. B. 92 (1881) 1086-. 

 methane, liquefied. Olszewski, K. 



Krk. Ak. (Mt.-Prz.) Bz. 14 (1886) 181-, 197- ; 



A. Ps. C. 31 (1887) 58-. 

 Phosphorus vapour. Dumas, J. B. A. C. 49 



(1832) 210-. 

 Platinum. Hess, H. St. Pet. Ac. Sc. Mm. 1 



(1831) 587-. 

 , iridium, and platinum-iridium, physical 



properties. Stas, . Par. Poids et Mes. 



PV. (*1877) 6-. 



metals and alloys, densities and expansions. 

 Broch, 0. J. Par. Poids et Mes. PV. (*1877) 

 209-. 



Saline solutions. Gerosa, G. G., <& Mai, E. 



Em. B. Ac. Line. Mm. 4 (1887) 134-. 

 Salts, various. Clarke, F. W. Am. J. Sc. 16 



(1878) 199- ; Berl. B. 12 (1879) 1398-; Am. 



C. J. 5 (1883-84) 240-. 

 Selenium. Schaffgotsch, F. von. Berl. B. 



(1847) 422-; Pogg. A. 90 (1853) 66-. 

 Soda and potash, solutions. Pickering, S. U. 



Ph. Mg. 37 (1894) 359-. 

 Sodium chloride, pure. Unger, U. von. Erdm. 



J. Pr. C. 8 (1836) 294-. 

 Solids, densities, influence of state of division. 



Schiff, H. C. Ztg. 10 (1886) 430. 



and liquids. Clarke, F. W. [1873] (ix) 

 Smiths. Misc. Col. 12 (1874) Art. 2, 272 pp.; 

 32 (1888) Art. 1, xi + 409 pp. 



Steam. Tralles, J. G. Gilbert A. 27 (1807) 



400-. 

 . Schmedding, G. J. Pogg. A. 27 (1833) 



40-. 

 . Rankine, W. J. M. Glasg. T. I. Eng. 3 



(1859-60) 53-; Edinb. B. S. T. 23 (1864) 



147-. 



. Schmidt, G. Dingier 160 (1861) 262-. 

 Steel, effect of tempering. Fromme, C. A. 



Ps. C. 8 (1879) 352-. 

 , homogeneity. Gruner, P. A. Ps. C. 41 



(1890) 334-. 

 Substances in solid state and in aqueous 



solution. Groshans, J. A. Ph. Mg. 18 



(1884) 405-. 

 Sulphur vapour. Biltz, . Nt. 38 (1888) 



229. 



. Schall, C. Berl. B. 33 (1900) 484-. 



, and progressive dissociation. Riecke, E. 



Z. Ps. C. 6 ^1890) 430-. 

 Sulphuric acid, concentrated. Kohlrausch, 



W. F. A. Ps. C. 17 (1882) 69-. 



, dilute, density and composition. 

 Rilcker, A. W. Ph. Mg. 32 (1891) 304- ; 33 

 (1892) 204-. 



solutions. Pickering, S. U. Ph. Mg. 33 



(1892) 132-. 

 Sulphurous anhydride as liquid and saturated 



vapour. Cailletet, , & Mathias, . J. 



de Ps. 6 (1887) 414-. 

 Tellurium. Lenher, V., <& Morgan J L R 



Am. C. S. J. 22 (1900) 28-. 



Vapours at high temperatures. Sainte-Claire 



Deville, H., & Troost, L. A. C. 58 (1860) 



257-. 



. Bott, W. B. A. Bp. (1888) 632-. 



. Scott, A. Edinb. B. S. P. 14 



(1888) 410-. 

 , saturated, and liquefied gases. Cailletet, 



L., <& Mathias, E. J. de Ps. 5 (1886) 549-. 

 Wood, various kinds. Karmarsch, K. Wien 



Jb. Pol. I. 18 (1834) 120-. 

 Woods, principal industrial. Filippo, P. Mil. 



S. It. At. 25 (1882) 105-. 

 Zinc vapour. Mensching, J., & Meyer, V. 



Gott. Nr. (1887) 7-. 



0150 Measurement of time ; 

 chronometers. 



(See also Astronomy 2100.) 



Absolute measurement by means of gravita- 

 tional attraction. Lippmann, G. C.B. 128 

 (1899) 1137-. 



unit of time determined by electrical stand- 

 ards. Lippmann, G. C. B. 104 (1887) 

 1070-. 



Chronodeik, for finding time within a second. 

 Chandler, S. C. (jun.). Obs. 4 (*1881) 14-. 



CHRONOGRAPHS. (See also 1650.) 



and application to gun ballistics. Watkin, 

 (Col.) H. [1896] B. I. P. 15 (1899) 176-. 



ballistic, Flamache " comparateur-re'gulateur " 

 for. Flamache, V. Lum. Elect. 17 (1885) 

 583-. 



with centrifugal pendulum. Rebeur-Paschwitz , 

 E. von. Z. Instk. 7 (1887) 171-. 



chronographic pendulum, Caspersen's. Co- 

 chard, (Capt.) L. Bv. Artl. 20 (1882) 535-. 



and chronoscopes, control hammer for. Kulpe, 

 O., & Kirschmann, A. Ph. Stud. 8 (1893 

 145-. 



, (Kiilpe and Kirschmann). 



Wundt, W. Ph. Stud. 8 (1893) 653-. 



, variable error, and controlling apparatus. 



Cattell, McK. Ph. Stud. 9 (1894) 307-. 

 , , (Cattell). Wundt, W. 



Ph. Stud. 9 (1894) 311-. 

 with controlling apparatus. Lange, L. Ph. 



Stud. 4 (1888) 457-. 

 Duboscq and Mercadier. Mercadier, E. Lum. 



Elect. 4 (*1881) 404-. 



electric. Locke, J. Silliman J. 8 (1849) 231-. 

 . Gibbs, W. Am. As. P. (1854) 103-. 

 . Deprez, M. C. B. 78 (1874) 1427-, 1562- ; 



Par. S. Ps. Se\ (1874) 93-. 

 , new form. Smith, (Rev.) F. J. Ph. Mg. 29 



(1890) 377-. 



new. Dodge, R. Z. Psychol. 10 (1896) 414-. 

 phonograph used as. Nansouty, M. de. G<n. 



Civ. 19 (1891) 343-. 

 regulator for. Anon. Elekttech. Z. 11 (1890) 



88. 

 simple. Cole, A. D. Denison Un. Sc. Lb. 



Bll. 5 (1890) 19-. 



46 



