Fixed Stars. 



206 



7120 



Franks. 



etoiles. 



12947 



La coiileui- des 



Relation between star 



colours and spectra. M.N., 68, (672). 



Analysis of tlie colours 



and magnitudes of 3630 stars between 

 the north pole and 25'' south declination. 

 M.N., 69, (106}. 



7150 



STELLAR DIAMETERS. 



Eddington. Note on Major Mac- 

 Mahou's paper " On the determination of 

 the ajDparent diameter of a fixed star." 

 M.N., 69, (ITSj. 



MacMahon. The determination of the 

 ajipareut diameter of a fixed star. M.N., 

 69, (126). 



7160 DISTRIBUTION IN HEAVENS, 

 ACCORDING TO NUMBER, 

 MAGNITUDE, COLOUR, Etc. 



London, Royal Astronomical Society, 

 Council of. Stellar distribution and 

 drift. M.N., 69, (311). 



Harzer. 13099. Die Sterne und der 

 Raum. Dichtigkeit der Sterne. 



Kapteyn. 13179. The number of 

 stars of determined magnitude and 

 determined galactic latitude. 



13180. Mean star-density 



at different distances from the solar 

 s^'stem ; [traduction] Sur la densite stel- 

 laire moyenne a des distances differentes 

 du systeme solaire. 



Kovesllgetliy. 13217. Der Sternen- 

 lilnnnel and seine Erscheinuugen. (Un- 

 garisch.) 



Lakits. 13262. Die Anzahl der 

 Sterne. (Ungarisch.) 



7500 



DOUBLE STARS AND 

 MULTIPLE STARS. 



LosnoN', Royal Astronomical Society, 

 Council of. Double stars in 1908. M.N., 

 69, f306;. 



Bumham. Recent double star work. 

 r..V., 14, (79). 



GooB. Der spektroskopische Doppel- 

 siern Capella. Diss. Bonn, 1908. 



Klein. 13191. Ein raerkwiirdiges 

 Sternsystem. [Mizar.] 



Lewis. 13303. Double star astronomy 



V. E 7. 



Lewis. 13301. Double star as- 

 tronomy, containing the history of 

 double star work, computation of oi'bits 

 and iDositions of orbit planes, formula" in 

 connection with mass, parallax, magni- 

 tude etc. [Reprinted from Observaton% 

 London, 31, 1908.] 



Pearson. 1360-1. Statistical remarks 

 on double stars. 



7510 OBSERVATIONS (VISUAL 

 AND PHOTOGRAPHIC). 



Cambridge Observatory. Measures 

 of double stars made with the North- 

 umberland ecj^uatorial of the Cambridge 

 Observatory, under the direction of 

 Professor Challis in the years 1839- 

 1844. Now published for the first time. 

 Cambridge Obsns. Vol. 24, Part 1, 

 (University Press), 1908, (vi + 39). 33 

 cm. 5s. net. 



Greenwich Royal Observatory. Micro- 

 metric measures of double stars made 

 with the 2S-inch refractor 1906. Green- 

 wich Obsns., 1906, 1908, (81-109). 



Aitken. Two interesting binaries in 

 Cetus. A.S.P., 17, (26). 



The binary stars ;8 208 



and /3 524. A.S.P., 17, (70). 



Secchi's companion to S 



2481. A.S.P., 17. (113). 



The motion of 13 Ceti- 



Ho 212. A.S.P., 17, (159). 



A double star jiroblem. 



[96 Ceti.] A.S.P., 18, (70), 



The duplicity of the princi- 

 pal component of 3 2348. A.S.P., 18, 



(227). 



Note on S 2028 (Rej.). 



A.S.P., 18, (272). 



Barnard. Parallax and proper motion 

 of the double star Krueger 60. M.N., 

 68, (629). 



Burnham. Double star measures. 

 A.N., 178, (201). 



Doberck. Accuracy of measures made 



by the jjrincipal double star observers. 

 A.N., 177, (65). 



Ehrenfeuclit. Relative Genauigkeit 

 der Doppelsternbeobachtungen bei ver- 

 schiedenen Beobachtern. A.N., 177, 



(381). 



Espin. Micrometrical measures of 

 double stars. M.N., 69, (218;. 



