LITERATURE OF THE SPECTROSCOPE. 27 



Eludes photornetriques. 



Cornu (A.). Jour, de Phys., 10, 189-198; Beiblatter, 6, 229 (Abs.). 



Eiu Photometer zu schulhygienischen Zwecken. 



Petruschewski (Th.). Jour. soc phys. chim. russe, 16, (2) 295-303, 

 1884; BeibHitter, 9 (1885), 248 (Abs.). 



POLARIZATION SPECTROSCOPES. 



A rotary polarization spectroscope of great dispersion. 



Tait (P. Gk). Nature, 22, 360-3G1 ; Beiblatter, 4, 725 (Abs.). 



Ein Polarizationsapparat aus Magnesiumplatincyanur. 



Lommel (E.). Ann. Phys. u. Chem., n. F. 13, 347. 



PRISMS. 



Absorption of light by prisms. 



Kobinson (T. R.). Observatory (1882), 53-54; Beiblatter, 6, 589 



(Abs.). 



Projection du foyer du prisme. 



Crova (A.). Jour, de Phys., (2) 1, 84-86. 



Etude des aberrations des prismes et de leur influeuce sur les observations 

 spectroscopiques. 



Crova (A.). Ann. Chim. et Phys., (5) 22, 513-543. 



Bemerkungen iiber Prismen. 



Radau (R.). Ann. Phys. u. Chem., 118, 452. 



D6placement des raies du spectre sous Taction de la temperature du 

 prisme. 



Blaserna (P.). Arch, de Geneve, (2) 41, 429-430; Ann. Phys. u. 

 Chem., 143, 655-656; Jour. Chem. Soc., (2) 10, 118 (Abs.); Phil. 

 Mag., (4) 43, 239-240. 



A direct-vision compound prism by Merz, with dispersion almost double 

 that of ordinary flint glass. 



Mr. Gassiot. Proc. Royal Soc, 24, 33. 



Note on the use of compound prisms. 



Browning (J.). Monthly Notices Astronom. Soc, 31, 203-205. 



Auflosung scheinbar einfacher Linicn durch Vermehrung der Prismen. 

 Merz (Sigismund). Ann. Phys. u. Chem., 117, G55. 



