3090 Optical Apparatus 



Firing arrangement, optical, for covered bat- 

 teries. Fraysseix,B.de. O.K. 90 (1880)1350-. 

 Flexure, new optical apparatus for studying. 



Lcewy, M., & Tresca, H. E. C. E. 95 (1882) 



1114-. 

 Focometer. Snellen, H. Bonders Ndl. Gast. 



Oogl. Vs. 17 (1876) 204-. 

 .Abbe's. Czapski,S. Z. Instk. 12(1892) 185-. 

 , new. Mergier, G. E. As. Fr. C. B. (1886) 



(Pt. 1) 100; Par. S. Ps. Se. (1887) 193-. 

 , . Everett, J. D. L. Ps. S. P. 12 (1894) 



180- ; Ph. Mg. 35 (1893) 333-. 

 , . Guilloz, T. As. Fr. C. E. (1895) 



(Pt. 2) 410-. 

 , universal. Weiss, G. Par. S. Ps. Se\ 



(1895) 35-. 

 Fountain, luminous. Trouve, G. C. E. 113 



(1891) 596-; 115 (1892) 424-. 

 Gauss plate, most favourable position. Walter, 



B. A. Ps. C. 52 (1894) 762-. 

 Glass cell with parallel sides. Clowes, F. 



Ph. Mg. 48 (1874) 61-. 

 , varnish to facilitate writing on. Ter quern, A. 



Par. S. Ps. Se. (1876) 114-. 

 Heliastron or solar-compass. Watt, M. Edinb. 



N. Ph. J. 4 (1828) 16-. 

 Iconographic apparatus. Vanghetti, G. Z. 



Ws. Mkr. 10 (1893) 457. 

 Image-finder, automatic. Bodkin, (Rev.) R. C. 



[1894] Dubl. S. Sc. P. 8 (1893-98) 281-. 

 Internal reflection in glass rod used for illumina- 

 tion of cavities. Robison, (Sir) J. B. A. Ep. 



(1842) (pt. 2) 27. 

 Kaleidopolariscope. Petrina, F. A. Pogg. A. 



49 (1840) 236-. 

 Kaleidoscope. Bradley, R. Tilloch Ph. Mg. 



51 (1818) 376-. 



Brewster, (Sir) D. Bb. Un. 8 (1818) 155-. 

 Gilbert, L. W. Gilbert A. 59 (1818) 341-. 

 Playfair, J. QJ. Sc. 5 (1818) 324-. 

 Roget, P. M. Thomson A. Ph. 11(1818) 375-. 

 Vallot, J. N. Dijon Se. Ac. (1818) 106-. 

 Wurzer, F. Gilbert A. 59 (1818) 368-. 

 Mack, K. Exner Epm. 21 (1885) 567-. 



and its application to the arts. Luca, P. 

 A. de. II Progresso 14 (1836) 82-; Nap. Ed. 

 1 (1842) 66 (166)-. 



.problem. Weiss, A. Pogg. A. 84 (1851) 145-. 



Kaloscope. Heys, W. H. [1861] Manch. Ph. 

 S. Mm. 1 (1862) 234-. 



Kinematograph, electric. Nicholl, W. Belfast 

 . NH. S. Ep. & P. (1896-97) 62-. 



Kinematography, Marey's apparatus. Her- 

 mann, . Konigsb. Schr. 36 (1895) [15]. 



Lactoscope. Seguier, A. C. E. 17 (1843) 585-. 



Laryngoscope, history. Blumgrund, E. Cztg. 

 Opt. 20 (1899) 32-. 



Magnification of dioptric apparatus, instrument 

 for experimental demonstration of theory. 

 Mergier, E. Par. S. Ps. Se. (1886) 60-. 



optical instruments, apparatus for 

 measuring. Govi, G. [1863] (vn) Tor. 

 Mm. Ac. 23 (1866) 455-. 



, . Oberbeck, A. N.-Vorp. 



Mt. 19 (1888) 71-. 

 Magnifying apparatus. Schilberszky, K. (jun.) 



Termt. Kozl. 22 (1890) (Suppl.) 47-. 



Optical Telegraphy 3090 



Measuring instruments with movable mirror 

 showing image of fixed scale in telescope, 

 determination of angle of rotation. Steg- 

 mann, F. Grunert Arch. 25 (1855) 376-. 



Micrometers, methods of cutting rock-crystal 

 for. Wollaston, W. H. Phil. Trans. (1820) 

 126-. 



, prismatic. Amid, G. B. Zach Cor. 8 

 (1823) 67-. 



Micrometric measurement by optical images. 

 Abbe, E. [1878] Jena. Sb. (1879) xi-. 



Mirror method, modification of Poggendorff's. 

 Du Bois, H. E. J. G. A. Ps. C. 38 (1889) 494-. 



reading, apparatus for illuminating scales. 

 Kamerlingh Onnes, . Amst. Ak. Vs. 4 

 (1896) 311- ; Arch. Neerl. 1 (1898) 405-. 



Mirror-lineal. Reusch, F. E. von. Carl Epm. 



16 (1880) 255-. 

 Momentary attitudes, rapid view instrument for. 



Galton, F. Nt. 26 (1882) 249-. 

 Monochromatoscope. Thierry, M. de. C. E. 



118 (1894) 636-. 

 Monostereoscope. Boblin, A. Brux. Ac. Bll. 



5 (1858) 304-. 

 , Boblin's. Scarpellini, C. Em. Cor. Sc. 5 



(1859) 137. 

 Multireflector for use with galvanometers, etc. 



Ayrton, W. E., & Perry, J. Lum. Elect. 



5 (*1881) 38-. 

 Optical experiment (wheels rotating in opposite 



directions). Arago, F. Ev. Mar. et Col. 46 



(1875) 444-. 

 - instrument, new (combining compound 



microscope, camera lucida, etc.). Waddell, 



A. Edinb. Ph. J. 5 (1821) 143-. 



model illustrating character of vibrations in 

 crystal cut parallel to axis, when plane- 

 polarised light is incident upon it. Rttcker, 

 A. W. L. Ps. S. P. 10 (1890) 11-. 



surfaces, working. Gautier, P. J. de Ps. 

 8 (1899) 477-. 



OPTICAL TELEGRAPHY. 



Anon. [1788] (vi 11) Am. Ph. S. T. 4 



(1799) 162-. 



Cooke, J. [1794] Ir. Ac. T. 6 (1797) 77-. 

 Edgeworth, R. L. [1795-96] Ir. Ac. T. 6 



(1797) 95-, 313-. 

 (Br^guet and Betancourt.) [Lagrange, J. L. t 



et alii non] Lagrange, J. L., & Le.gendre, . 



Par. Mm. de I'l. 3 (1800-01) 22-. 

 Carney, J. A. Mntp. Eec. Bll. 2 (1805) 289-. 

 Lamanon, P. J. de Ps. 65 (1807) 5-. 

 Pasley, (Sir) C. W. Tilloch Ph. Mg. 29 (1807) 



205-, 292-. 



Le Hardy, C. Tilloch Ph. Mg. 33 (1809) 343-. 

 Edgeworth, R. L. Nicholson J. 26 (1810) 181-. 

 Parrot, G. F. [1834] St Pet. Ac. Sc. Mm. 3 



(1838) 239-. 



Laussedat, A. As. Fr. C. E. (1874) 1267-. 

 Leard, A. A. Tel. 2 (1875) 379-. 

 Mercadier, E. Lum. Elect. 2 (*1880) 146-, 



502- ; A. Tel. 7 (1880) 5-, 118-, 544-; 8 



(1881) 44-, 167-. 

 Nansouty, M. de. Gen. Civ. 7 (1885) 116-, 



133-, 150-. 



338 



