Constant of Precession. 



3320 



3320 COXSTAXT OF PRECES- 

 SIOX AXD XUTATIOX. 



Davis, Ilennann S. Secular variation 

 of precessiou from Besselian star constants. 

 Asti-. Xachr., Kiel, 166, 1904, (73-7G). 



Dyson, F[rauk] W[atson], and 

 Thackeray, W[illiam] G[rasett]. A 

 determination of the constant of precession 

 and the direction of the solar motion from 

 a comparison of Groombridge's Catalogue 

 (1810) with modern Greenwich observa- 

 tions. London, Mon. Not. E.. Astr. Soc, 

 65, 1905, (4'2S-4.57). 



See, T, J. J. Xote on the total period 

 of the precession of the Equinoxes. Astr. 

 Xachr., Kiel, 166, 1904, (89-92). 



3350 



MISCELLAXEOrS. 

 FRACTION. 



RE- 



Ball, L. de. The value of the constant 

 of refnictiou. London, Mon. Not. R. 

 Astr. So^'., 66, 1906, (76-79). 



Courvoisier, L[eo]. Untersuchungen 

 iiber die astronomische Refraktion. Heidel- 

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Crawford, Russell Tracy. The constant 

 of refraction. San Francisco, Cal., Pub. 

 Astr. Soc. Pac, 16, 1904, (78-84). 



Weidefeld, 0. Die GriJsse der astro- 

 nomisclien Refraktion im Ilorizont. Mitt. 

 Yer. Astr., Berlin, 14, 1904, (69-71). 



DESCRIPTIVE ASTRONOMY 



AND ASTROPHYSICS. 



OBSERVATIONS. 



SOLAR SYSTEM. 



4000 



GEXERAL. 



Greexwich Royax Observatory. 

 Horizontal and vertical diameters and right 

 ascensions and North Polar distances of 

 the sun, moon, and planets observed \\ith 

 the new altazimuth, compared with the 

 corresponding residts of the Nautical 

 Almanac, 1902. Greenwich Obsns., 1902, 

 1904, ([e9]-[75]). 



Transit cu-cle horizontal and 



vertical diameters and right ascensions and 

 North Polar distances of the sun, moon, 



and planets, compared -with the correspond- 

 ing results of the Nautical .Almanac : with 

 the inferred position of the ecliptic, the 

 geocentric eiTors of the sun, moon, and 

 planets in longitude and ecliptic polar 

 distance; and the equations between the 

 geocentric eiTors of the planets and the 

 heliocentric errors of the earth and planets 

 in longitude and ecliptic p lar distance, 



1902. Greenwich Obsns., 1902, 1904, 

 (C20.5H232]). 



Aybel. Loi des distances et des har- 

 monies planetaires. Paris (Hugues Robert) , 

 1904,(32). 25 cm. 



Brenner, Leo. Die Bewohnbarkeit der 

 Welten. (Ilillgers Olustrierte Volksbiicher. 

 Bd 20.) Berlin and Leipzig (H. Hillger), 

 [1905], (96). 17 cm. 0,30 M. 



Denning, W. F. Planetary observation. 

 [Reprint] Pop. Astr., X-orthfield, Minn., 

 11, 1903, (19-22). 



Lowell, Pereival. The solar system. 

 Six lectures delivered at the Massachusetts 

 Institute of Technology in December, 1902. 

 Boston and N^ew York (Houghton, Mifflin), 



1903, (4 1. + 134, with text fig.). 19.5 cm. 



Meyer, M[oritz] TYilhelm. "Welt- 

 schiipfung. Wie die Welt entstanden ist. 

 Stuttirart'(Kosmos), [1904], (93). 21cm. 

 1 M." 



Neugebauer. P[aul] Y[ictor]. Abge- 

 kiiizte Tafeln der Sonne uud der grossen 

 Planeten . Berlin , Yeroff . astr. Recheninst. , 

 Nr. 25, 1904, (1-34). 



See, T[homas] J[efPerson] J[ackson]. 

 On the absence of sensible refraction in 

 occultatious of stars bv the planets. Astr. 

 Nachr., Kiel, 166, 1904, (377-380). 



Researches on the internal 



densities, pressures, and moments of inertia 

 of the principal bodies of the planetary 

 svstem. Astr. Nachr., Kiel, 167, 1905, 

 (113-142, mit 2 Taf.). 



Spariosu, Basil. Die Rotation der 

 Planeten. Weltall, Berlin, 4, 1904, (346- 



348). 



[Struve, Hermann.] Deklinationen von 

 Sonne, Mond und Planeten. [Merkur; 

 Yenus ; Mars ; Jupiter ; Saturn ; Uranus ; 

 Ceres ; Pallas ; Juno ; Yesta.] Konigs- 

 bers-, Astr. Beob. Sternw., 40, 1904, 

 (83-90). 



Szekely, Karoly. Ober die Atmosphare 

 des Zwiseheuraums der Planeten, uud des 

 Sonnensvstems. (Ungarisch) Potf.Tennt. 

 Kijzl., Budapest, 36, 1901, (88-98). 



