Personal Eauations. 



144 



3200 



Stebbins. 

 17. (73J. 



Personal scale. A.S.P., 



3220 ERRORS OF SCREWS, 

 CIRCLES, Etc., FLEXCRE. 



Gonnessiat et Fayet. Methode de 

 Loex\-^- pour I'etude des cercles divises. 

 C. R.", 145, ri57). 



Heyde. 13112. Uutersuchung einer 

 Kreisteilung. 



Kliiikenberg. Die Greenwich-Dekli- 

 iiationsbestinimungen von Polaris 1851- 

 1905 [mit Untersuchungen uber die 

 Instrumentalfebler des Transitzirkels"". 

 Rotterdam, 1908. 



Salet. La flexion des instniments 

 meridiens. B.A., 24, (241). 



Weeder. 11014. The investigation 

 of the weights in equations according to 

 the principle of the least squares [with a 

 special view to the compensation of the 

 detemiinations of division-errors of the 

 Lcyden transit-circle]. 



Wolfer. 14079. Messapparat fiir 

 photographische Flatten von O. Toepfer 

 B. Sohn. 



3250 REDUCTION OF CELES- 

 TIAL PHOTOGRAPHS. ERRORS 

 OF MEASURES. 



Albrecht. Distortions of photographic 

 films on glass. A.J., 25, (349). 



Bemporad. Xuove tavole per la 

 trasformazioue delle coordinate equa- 

 toriali (A.R. e decl.) in coordinate 

 rettilinee della fotografia celeste. S.S.I., 

 86, (45). 



Jacoby. 131 54. Formulas for the com- 

 parison of astronomical photographs. 



Kapteyn and Sitter. 13182. The 

 proper motions of 3300 stars of different 

 galactic latitudes derived from plioto- 

 grapliic plates prepared by Anders 

 Donner measured and discussed by. 



Kostinsky. Einwirkung zweier Bilder 

 auf einander bei astrophotographischen 

 Aufnahmen. M.S.Pk., 2, (17). 



Perrine. .Some simplifications in the 

 reduction of stellar pliotographs. LickB., 

 Xo. 102, (77). 



Tichov. 13938. L'application de la 

 metliode photographique de M. Kapteyn 

 a la determination des parallaxes des 

 etoiles brillantes. M.S.Pk., 2, 1907, 

 (101). 



Wolfer. 14079. Messapparat fiir 

 photographische Flatten von 0. Toepfer 

 u. Sohn. 



DESCRIPTIVE ASTRONOMY 



AND ASTROPHYSICS. 



OBSERVATIONS. 



3290 



GENERAL. COSMOGONY. 



Cholnoky u. Kovesligethy. 12694. 

 Das Weltall. Die physikalischeu Pha- 

 nomene der Erde und der Sternwelt. 



(Ungarisch.) 



Newkirk. A review of certain re- 

 searches on radio-activity that have a 

 bearing upon astronomical questions. 

 A.S.P.; 18, (289;. 



DETERMINATION OF ASTRO- 

 NOMICAL CONSTANTS BY 

 OBSERVATION. 



3300 GENERAL. 



Plummer. 1 3G80. Spectroscopic 

 observations and fundamental astrono- 

 mical constants. 



DETERMINATION OF ASTEO- 



NOMICAL CONSTANTS BY 



OBSERVATION. 



3310 CONSTANT OF ABERRATION. 



Bonsdorff. Beobachtungen von 5 

 Cassiopejae mit dem grossen Zeuittele- 

 skop. M.S.Pk., 2, (1). 



Kostinsky. Beobachtungen von 5 

 Cassiopejae am Passageninstrument im I 

 A'ertical im Jahre 1905-1906 imd ihre 

 Vergleichung mit gleichzeitigen Beob- 

 achtungen am Zenitteleskop. M.S.Pk., 

 2. (65). 



3320 CONSTANT OF PRECES- 

 SION AND NUTATION. 



See. 13844. 

 equinoxes. 



La precession des 



3350 



RE- 



MISCELLANEOUS. 

 FRACTION. 



Ball. Le coefficient de dilatation de 

 Pair et Tinfluence de I'humidite sur les 

 refractions astronomiques. B.A., 24, 



(209). 



Bergstrand. Abhangigkeit deratmo- 

 spharischen Dispersionswirkungen von 

 den Sterngrossen. A.N., 177, (241). 



