; tTEBATURE OF Tin: BP» TROBCOPE. 



Anwi sndung dee Vierordt'schen I toppelspaltes in der Spectralanalyse. 

 D •:;• b W. . Beiblatt< p, 5 188 in. 



Protuberanzs] ccentrischer, bogenformiger Spaltvorrich- 



tung. 



Bruno (J.). Z. [nstramenten., 1. 281 c . 



Bpectralspalt mil Bymmetrischer Bewegung der Schneiden. 



j (H.). Carl's Bepert, 18. 217 228; /-. analyt. Chemie, 21. 182- 

 191; Beiblatter, 6 ; Jour. Chem. Soc., 42, 1229 A 



Z. Instrument 3 



troscope with .-li<lr. approved by Tyndall and others. 

 Bofmann. Chem. News, 26 1872 . 180. 



:■ the spectroscope. 



leer (Alex. E . Chem. News, 41 1880 , 79. 



-ri.« DRO-BOLOMEI u:. 



t'the spectro-bolonu ter. 



j - P \ p. Jour. Sei., (8) 21, 187; 24. 895; 25, 17u; 

 27 169; 30, 477. 



BPJ9 TBOGRAPH. 



breibung ernes Bpectrographen mil Flussigkeitsprisiua. 



5 : J 



BPB ntOMEl ER8. 



I >( xiption d'un spectrometre. 



Et ndus, 54. 208. 



I >. Bcription d'un oouveau spectrometre ;'i vision directs rendu plus simple 

 1 1 moine: dispendieux. 



57 



On a spectrometer and universa] goniometer, adapted to the ordinary 

 want- of ;i laboratory. 



i; D. . l'r • . Cam 4 I 



< »n a ii'-w t* prin of spectrometer. 



J V, 10. M 7 



. :. 3. 821. 



Interf 



l 6 . 



