7510 



222 



Descriptive Astronomy. 



Greenwich, Eoyal Observatory, ili- 

 crometric measures of double stars, 

 1901. Greenwich Obsiis., 1901, 1003, 

 (13-49). 



■- Results of micronietric 



measures of double stars made with the 

 28-inch refractor at the Royal Obseiva- 

 tory, Greenwich, in the year 1903. 

 Loudon, Mon. Not. R. Astr. Soc, 64, 

 1904, (789-807). 



Hussey, W[iIIiam] J[oseph]. Obser- 

 vations of a selected list of Otto Struve 

 double stars. Berkeley, Lick Obs., 

 Univ. Gal., Bull., No. 40, [1903J, (73-77). 



■ Observations of miscel- 

 laneous double stars. Berkeley, Lick 

 Obs., Univ. Cal., Bull., No. 44,' [1903], 

 (115-123). 



Maw, W. H. Doulile star observa- 

 tions, 1899-1901. London, Mem. R. 

 Astr. Soc, 54, 1904, (127-135). 



Seabroke, G. M., Highton, H. P., 

 Atkinson, E. G. and Lempfert, R. G. K. 

 Further measures of double stars made 

 at the Temple Observatory, Rugby, 

 during the vears 1895 to 1901. London, 

 Mem. R. Astr. Soc, 54, 1904, (97-125). 



7520 LISTS, CATALOGUES, 



COLOURS OF DOUBLE STARS- 

 INVISIBLE COMPANIONS. 



Campbell, W[illiam] W[allace] and 

 Curtis, lleber D. A list of five stars 

 whose velocities in the line of sight are 

 variable. Berkeley, I,ick Obs. Univ. 

 Oal., Bull., No. 46, [1903J, (J 26). 



Doppler, Christian. Ueber das farbige 

 Licht der Doppelsterne und einiger 

 anderer Sterne des Himmels. Versuch 

 einer das Bradley'sche Aberrations- 

 Theorem als integrirenden Theil in sich 

 schliessenden allgemcinen Theorie. Zur 

 Feier seines hundertsten Geburtstages 

 als erste Veroffentlichung des nach ihm 

 benannten physikalischen Pi-incips neu 

 iierausgegeben von F[rantisek] J. Stud- 

 nicka. Prag (Konigl. Bohm. Ges. d. 

 Wiss.), 1903, (25, mit Doppler's Portrat). 

 25 cm. 



Hartmann, J. Untersuchungen iiber 

 das Spectrum und die Balm von S 

 Orionis. Berlin, SitzBer. Ak. Wiss., 

 1904, (527-542). 



Lewis, T. Some inteiesting double- 

 stars. (Jbservaton-, London, 27, 1904, 



(230-237). 



Reese, H. M. A list of four stars 

 whose velocities in the line of sight are 

 variable. Berkelev, Lick Obs., Univ. 

 Cal. Bull., No. 31,"l903, (29); Astroph. 

 J. Chicago, III, 17, 1903, (308 310). 



Vogel, H[ermann] Cfarl]. Unter- 

 suchungen iiber da-; spectroskopische 

 Doppelsternsvstem /8 Aurigae. Berlin, 

 SitzBer. Ak. Wiss., 1904, (497-517). 



The spectroscopic binary 



o Persei. [Translated from advance 

 proofs, furnished by the author, of a 

 paper to appear in Berlin, SitzBer. 

 Ak. Wiss.] Astroph. J. Chicago, 111., 

 17, 1903, (212-219). 



f Aurigae a spectroscopic 



binary. [Translated irom advance 

 proofs, furnished by the author, of a 

 paper communicated to the Kgl. Aka- 

 demie der Wissenschaften zu Berlin.] 

 Astroph. J., Chicago 111., 17, 1903, 

 (243-244). 



7530 DISCUSSION OF ORBITS. 



DIMENSIONS, MASS AND 

 DISTANCE OF BINARY 



SYSTEMS. 



Adams, Walter S. The orbit of the 

 spectroscopic binarv v Orionis. Astroph. 

 J., Chicago, 111., 17, 1903, (68-71, with 

 pi.). 



Aitken, R[obert] G[rant]. The system 

 of Epsilon Hvdrae. Berkelev, Lick Obs., 

 Univ. Cal., Bull., No. 36, [1903], (53-56). 



Comstock, George C[aiy]. The mass 

 of 8.1 Pegasi. Astroph. J., Chicago, 

 111., 17, 1903,(220-223). 



Doolittle, Eric. The orbit of the 

 double star 2 518. Philadelphia, Pa., 

 Proc. Amer. Phil. Soc, 42, 1903, (170- 

 179). 



Gore, J. E. The binary star k 

 Pegasi. London, J. Brit. Astr. Ass., 14, 

 1904, (280). 



On the relative brightness 



of binary stars. London, Mon. Not. R. 

 Astr. Soc, 65, 1905, (162-167). 



The satellite of Sirius. 



Observatory, London, 28, 1905, (55-57). 



