3010 Photometry 



spectrophotometer, new. Lummer, 0. A. Ps. 



C. (Berl. Ps. Gs. Vh. 1892) 46 (1892) 337-. 

 , and optical method of calibration. Brace, 



D. B. Ph. Mg. 48 (1899) 420-. 



, variation of constant. Otto, J. G. 



Christiania F. (1883) No. 3, 5 pp. 

 spectrophotometers. Crova, A. J. de Ps. 



8 (1879) 85-; C. B. 92 (1881) 36-. 

 , improvements. Zenker, W. Z. Instk. 



4 (1884) 83-. 

 spectrum, photometric comparison of different 



parts. Trannin, H. Par. S. Ps. Se. (1876) 



107-. 

 _, . Nicati, W., & Mace, de 



Lepinay, J. A. C. 24 (1881) 289- ; 30 (1883) 



145- ; Par. S. Ps. Se. (1883) 11-. 



suggested remedy for source of error. Wright, 



L. T. S. C. In. J. 15 (1896) 558. 

 system proposed by Cesa-Bianchi. Magrini, 



L. Mil. G. I. Lomb. 8 (1856) 419-. 

 theory. Zollner, F. A. Ps. C. 128 (1866) 46-. 

 and undulatory theory of light. Wheeler, J. H. 



Ph. Mg. 5 (1834) 439-. 

 visual sensations, theory and experiments. 



Broca, A. Par. S. Ps. Se. (1894) 81-. 



Photoptometer. Henry, C. Par. S. Bl. Mm. 



44 (1892) (C. E.) 935-. 

 Pyrometry and photometry with reference to 



actinometry. Chistoni, C. Mod. S. Nt. 



At. 1 (1900) 66-. 

 Shadows, 2, produced by single luminous 



source. Mascari, A. Spet. It. Mm. 18 



(1890) 106-. 

 Smoke density, observation and measurement. 



Hille, B. Giving. 40 (1894) 327-. 

 Sunlight colours. Abney, (Capt.) W. de W. 



[1887] B. I. P. 12 (1889) 61-. 



UNITS OF LIGHT. 



Heeren, F. Dingier 160 (1861) 267-. 

 Schwendler, L. Beng. As. S. J. 48 (1879) 



(Pt. 2) 83-. 

 (Schwendler.) Geraldy, F. Lum. Elect. 



2 (*1880) 189-. 

 Eidout, E. H. [1880] Birm. Ph. S. P. 



2 (1881) 160-. 



Geraldy, F. Lum. Elect. 6 (*1882) 280-. 

 Kriisg, H. Cztg. Opt. 4 (*1883) 161-, 169-. 

 Preece, W. H. [1883-84] B. S. P. 36 (*1884) 



270- ; Lum. Elect. 12 (1884) 49-. 

 Siemens, W. Elekttech. Z. 5 (1884) 244-. 

 Warren, T. T. P. B. Elect. 13 (1884) 104-. 

 Kriiss, H. Cztg. Opt. 6 (1885) 92-, 102-, 



115-. 



Siemens, W. [1885] Phot. J. 10 (1886) 39-. 

 Trowbridge, J. Am. Ac. P. 20 (1885) 494-. 

 Violle, J. Par. S. Ps. Se. (1885) 64. 

 Dibdin, W. J. S. C. In. J. 7 (1888) 367-. 

 Palaz, A. Lum. Elect. 27 (1888) 151-, 216-, 



406-, 458-, 618- ; 31 (1889) 109-. 

 Bunte, . [1889] Karlsruhe Nt. Vr. Vh. 11 



(1896) (Sb.) 53-. 



Units of Light 3010 



Blondel, A. Lum. Elect. 53 (1894) 7-, 100; 



Eclair. Elect. 8 (1896) 341-. 

 Kriiss, H. S. C. In. J. 15 (1896) 580. 

 Sharp, C. H. Science 4 (1896) 347. 

 Weber, L. Elekttech. Z. 18 (1897) 91-. 

 Fery, C. C. B. 126 (1898) 1192-. 

 Grafton, W. S. C. In. J. 17 (1898) 831. 

 Guillaume, C. E. [1900] Sc. Abs. 4 (1901) 



475-. 

 Absolute unit. Violle, J. Par. S. Ps. S<5. 



(1884) 141- ; Lum. Elect. 14 (1884) 475-, 



514-. 

 Acetylene light, measurement. Erdmann, . 



Z. Angew. C. (1899) 1178. 



photometric standard. Violle, J. C. B. 

 122 (1896) 79-. 



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



(1900) 89-. 



Amyl acetate lamp. Hefner- Alteneck, F. von. 

 S. C. In. J. 7 (1888) 202. 



. Anon. Cztg. Opt. 9 (1888) 109-. 



. Bothamley, C. H. Phot. J. 18 (1894) 



231-. 

 (Hefner- Alteneck), and absolute unit 



of light. Eeis, . Humb. 7 (1888) 183-. 

 ( ), constancy. Anon. Z. Instk. 13 



(1893) 257-. 

 ( ), flame-gauge. Martens, F. F. 



D. Ps. Gs. Vh. (1900) 108-. 

 .luminosity. Liebenthal,E. Elekttech. 



Z. 9 (1888) 478-. 

 (Hefner-Alteneck) and pentane lamp, 



influence of composition of surrounding air. 



Liebenthal, E. Z. Instk. 15 (1895) 157-. 

 , photometry with. Voller, A. Elekt- 

 tech. Z. 12 (1891) 122-, 193-. 

 , (Voller). Hefner-Alteneck, F. 



von. Elekttech. Z. 12 (1891) 177-, 194-. 

 Bolometric measurements. Lummer, 0., & 



Kurlbaum, F. Berl. Ak. Sb. (1894) 229-. 

 . Sharp, C. H., & Turnbull, W. E. Ps. 



Bv. 2 (1895) 1-. 

 Carcel lamp and spermaceti candle. Vladi- 



mirskil,A. S. [1871] (xn) Mosc. S. Sc. Bll. 



39 [No. 2] (1880) 35-. 

 Constant units. Uppenborn, F. Cztg. Opt. 9 



(1888) 121-, 135-. 

 Construction of unit. Siemens, W. Berl. Ak. 



Sb. (1884) 601-. 

 Experiments. Petavel, J. E. B. S. P. 65 



(1900) 469-. 

 Hefner-Alteneck unit. Hefner-Alteneck, F. von. 



Elekttech. Z. 5 (1884) 20-. 

 , new standard-lamp reproducing. Blondel, 



A. As. Fr. C. B. (1898) (Pt. 2) 223-. 



, photometric investigations. Lieben- 

 thal, E. Elekttech. Z. 9 (1888) 96-. 



Method of determination. Pickering, W. H. 



Science 6 (1885) 183. 

 Methven standard with blackened chimney. 



Fessenden, E. A. Sc. Abs. 2 (1899) 503. 

 Pentane 10-candle lamp as standard of light. 



Harcourt, A. G. V. B. A. Bp. (1898) 



845-. 



standard, comparison of Harcourt 's and 

 Methven's photometric standards. Eawson, 

 W. S. Elect. 17 (1886) 479-. 



284 



