ON OUR KNOWLEDGE OF SPECTRUM ANALYSIS. 



333 



W.M. Watts . 



B. Delachanal and A. 

 Mermet. 



I?. Bunsen 



H. C. Sorby 



Instrumental, 1875-1877. 



On ,1 New Form of Micrometer for 

 use in Spectroscopic Analysis. 

 (Read June 26.) 



Nouveau tube spectro-61ectrique (f ul- 

 gurator modilie.) (Read Oct. 26.) 



SpectralanalytischeUutersuchungen. 



On a new Method of measuring the 

 Position of the Bands in Spectra. 

 (Read Nov. 3.) 



Troc. Phys. Soc' i. 160- 

 164 ; ' Phil. Mag.' [4] 1. 

 81-85; 'Ann. Phys. u. 

 Chem.' clvi. 313-318. 



' C. R.' Ixxxi. 726-728 ; 

 ' Nature^' xiii. 7i-75. 



' Ann. Phys. u. Chem.' civ. 

 230-252,.366-?84;'Phil. 

 Mag.' [4] I. 417-430, 

 527-539; 'J. Chem. Soc' 

 1876, i. 665-667 (Abs.) 



' Monthly Mic. J.' xiv. 

 269-273. 



T. H. Marvin 



J. N. Lockyer . 



B. Delachanal and A. 



Mermet. 



G. W. Royston-Pigott 



F. Kessler 



W. Baily 



J. L. Soret 



1876. 



On the Production of Spectra by the 

 j Oxyhydrogen Flame. (Dec. 16, 

 1876.) 



Some Recent Methods of Spectro- 

 scopy. 



Nouvean tube spectro-61ectrique 



On a new Ref ractometer for measur- 

 ing the Mean Refractive Index of 

 Plates of Glass and Lenses by the 

 employment of Newton's Rings. 

 (Reed. Mar. 19. Read Mar. 23.) 



Vorlesungsversuch : Objective Dar- 

 stellung des Sonnenspectrums. 

 (April 1876. Read April 10.) 



A New Arrangement for the Micro- 

 meter of the Automatic Spectro- 

 scope. 



Spectroscope t\ oculaire fluorescent. 

 Seconde note. 



■Stoney . 



Nouveau Spectroscope 



' Phil. Mag.' [5] i. 67-68 ; 

 'J. Chem. Soc' 1876, ii. 

 156 (Abs,) . 



' Chem. News,' xxxiii. 29. 



' Bull. Soc. Chim.' [2] xxv 

 194-197; 'J. Chem. Soc' 

 1876, ii. 35-36 (Abs.) 



'Proc Roy. Soc' xxiv. 

 393-399. 



'Bar.' ix. 577-578; 'J. 

 Chem. Sqc' 1876, ii. 266 

 (Abs.) 



'Phil. Mag.' [5] i. 314-315. 



'Ai-ch.de Geneve, '[2] Ivii. 

 319-333; 'Ann. Cliim. 

 etPhys.' [5] xi. 72-86; 

 'Am. J.' [3] xiv. 415- 

 416 (Abs-.); 'Beibliitter,' 

 i. 190-192 (Abs.) 



'Monit. Scient.' [31 vi 

 657. 



Van Monckhoven 



W.H. M.Christie 



1877. 



Sur les moyens propres ^ la re- 

 production photographique des 

 spectres ultra-violets du gaz. 

 (Read Feb. 3.) 



On the Magnifying-power of the 

 Half -prism as a means of obtain- 

 ing great Dispersion, and on the 

 General Theory of the Half-prism 

 Spectroscope. (Reed. Jan. 25. Read 

 Mar. 1.) 



' Bull, de I'Acad. de Bel- 

 gique'[2] xliii. 187-192 ; 

 ' Beibliitter,' i. 286-287 

 (Abs.) 



' Proc. Roy. Soc' xxvi. 8- 

 40 ; ' Beibliitter,' i. 55G - 

 561 (Abs.) 



