3020 



Reflection and Refraction 



3020 



Pentane standard lamp giving a constant light. 



Harcourt, A.G.V. B. A. Ep. (1883) 426-. 

 , Harcourt's. Anon. Tel. J. 22 (1888) 



358-. 

 , light unit. Harcourt, A. G.V. C. N. 



36 (1877) 103- ; B. A. Kp. (1887) 617-. 

 , photometry. Harcourt, A.G.V. B. A. 



Ep. (1885) 916-. 

 Phosphorescence of zinc sulphide. Henry, C. 



C. E. 115 (1892) 602-. 

 Standard candle. Anon, (vi 868) Nicholson J. 



6 (1803) 219-. 

 , radiation. Hutchins, C. C. Am. J. Sc. 



39 (1890) 392-. 

 , sperm. Young, W. C. S. C. In. J. 10 



(1891) 185-. 

 , use in photometry. Sharp, C. H. Ps. 



Ev. 3 (1896) 458-. 

 Swinburne-Thompson unit. Thompson, S. P. 



Elect. 31 (1893) 592. 

 Unit for photometric purposes. Nippoldt, W. A. 



Z. Nw. 11 (1875) 417-. 

 Units of light and brightness. Weber, L. Elect. 



25 (1890) 404. 



, electric light measurements. 

 Hefner-Alteneck, F. von. (xii) Elekttech. Z. 

 4 (1883) 445-. 



, magnetic and photometric. Hanappe, S. 

 Ev. Un. Mines 36 (1896) 245-. 



and photometric quantities. Weber, L. 

 Bresl. Schl. Gs. Jbr. (1889) 110-. 



photometry. Rothen, . J. Tel. 9 



(1885) 125-. 

 Use of coal-gas. Branly, E. C. E. 104 (1887) 



847-. 



- rapidly moving sensitive surfaces in 

 measurement of solar light. Abney, (Capt.) 

 W. de W. Phot. J. 17 (1893) 235-. 



Violle standard. Cross, C. R. Am. Ac. P. 22 



(1887) 220-. 



. Palaz, A. Lum. Elect. 34 (1889) 51-. 



, comparison with Carcel lamp. Violle, J. 



A. C. 3 (1884) 373-; C. E. 98 (1884) 1032- ; 



Ev. Sc. 34 (1884) 146-. 



, platinum unit of the Phys.-Techn. 

 Eeichsanstalt. Kurlbaum, F., & Lummer, O. 

 Berl. Ps. Gs. Vh. (1895) 56-. 



, Siemens' s platinum normal lamp, experi- 

 ments. Lieberthal, E. Elekttech. Z. 9 (1888) 

 445-. 



White light, committee on standards. Brit. 

 Ass. Comm. (Forbes, G.) B. A. Ep. (1885) 

 61- ; (1888) 39-. 



3020 Reflection and Refraction. 

 Refractometers. (See also 3800; 

 Chemistry 7310.) Refractive 

 Indices. 



Asterism, artificial production. Grilel, C. A. 



Pogg. A. 120 (1863) 511. 

 Aureole round head of shadow thrown on 



water. Preaubert, E. Angers S. Sc. Bll. 13 



(1884) 99-. 



CATOPTRICS AND DIOPTRICS. 



Catoptrics. Milnchow, K. D. von. Ac. Caes. 



Leop. N. Acta 14 (1828) 619-. 

 , theorem. Dieu, T. N. A. Mth. 9 (1850) 



409-. 

 , true. Werneburg, J. F. C. Ac. CSBS. Leop. 



N. Acta 14 (1828) 573-. 

 Dioptrics. Sorlin, A. N. J. Strasb. J. S. Sc. 



4 (1827) 224-. 



. Seidel, L. Munch. Bll. Ak. (1853) 107-. 

 . Bravais, A. Liouv. J. Mth. 1 (1856) 



. Mohn, H. Christiania F. (1859) 163-. 

 . Hansen, P. A. Leip. Mth. Ps. Ab. 10 

 (1874) 693-. 



(Hansen). Kriiss, A. H. As. Nr. 86 (1875) 

 137-. 



. Zenger, K. V. C. E. 93 (1881) 398-; 



Les Mondes 56 (1881) 44-; Prag Sb. (1881) 



479-. 

 , apparatus for demonstrating law of sines. 



Caruso, R. (vi Adds.) Majocchi A. Fis. C. 



22 (1846) 255-. 

 , expression of fundamental proposition. 



Minding, E. F. A. [1845] St. Pet. Ac. Sc. 



Bll. 5 (1847) 113-. 



, fundamental formulae developed for practi- 

 cal use. Moser, K. Prag Sb. (1881) 141-. 

 , law. Most, R. A. Ps. C. (Ergdnz.) 8 



(1878) 299-. 

 Fundamental formulas. Grunert,J.A. Grunert 



Arch. 2 (1842) 145-. 



problem. Grunert, J. A. Grunert Arch. 4 

 (1844) 175-. 



Means of overcoming difficulties of study. 

 Schellbach, C. H. Pogg. A. 76 (1849) 606-. 



Curved light-rays. Geigel, R. Wurzb. Ps. Md. 



Sb. (1893) 99-. 

 Curves, refracting, with 2 conjugate foci. 



Quetelet, L. A. J. Quetelet Cor. Mth. 5 



(1829) 109-. 

 Electric phenomenon and optical phenomenon, 



analogy between. Tolomei, G. Ev. Sc.-Ind. 



[24 (1892)] 17-. 

 Glass, Jena. Swift, J. Mcr. S. J. (1888) 



486. 

 , , list of varieties. Caplatzi, A. Mcr. S. 



J. (1890) 398-. 

 Images, 2, of body in water. Hallstram, G. G. 



Gilbert A. 6 (1800) 431- ; 12 (1803) 621-. 



of stick in water, form. Gergonne, J. D. 

 Gergonne A. Mth. 11 (1820-21) 229-. 



Lens, determination of focus. Lommel, E. Z. 

 Instk. 5 (1885) 124-, 200. 



Luminous point, image in refractive media. 

 Cechovic, K. Es. Ps.-C. S. J. 18 (Ps.) (1886) 

 150- ; J. dePs. 7(1888)221. 



in transparent medium, apparent posi- 

 tion. Bauer, K. L. A. Ps. C. 153 (1874) 

 572-; 154 (1875) 461-. 



points. Voigt, W. Crelle J. Mth. 89 (1880) 

 288-. 



(Voigt). Kirchhoff, G. [1880] Crelle J. 



Mth. 90 (1881) 34-. 



285 



