Astronomie und Geodäsie. 



377 



4941 Keeler, J. E., The Annular Nebula HIV, 13 in Cygnus. Chicago (Astrophys. 

 Journ.) 1899. roy. 8. 3 pg. Mark 1 



4942 — The Crossley Reflector of the Lick Observatory. Chicago (Astrophys. Journ.) 



1900. roy. 8. 25 pg. with 4 plates and 1 figure. 2so 

 4 943 — The Spiral Nebulae HI, 55 Pegasi. Chicago (Astrophys. Journ.) 1900. roy. 8. 



5 pg. with 2 plates. I20 



4944 King, E. S., Forms of Images in Stellar Photography. (Cambridge, Mass., Ann. 

 Observ. Harv. Coli.) 1901. 4. 35 pg. with 1 plate and 4 figures. 4 

 Koll, 0., Die Theorie der Beobachtungsfehler u. der kleinsten Quadrate — siehe 

 Nr. 4916. 



4945 KÖvesligethy, R. de, The physical Meaning of the Star-magnitude. Chicago 

 (Astrophys. Journ.) 1900. roy. 8. 7 pg. 1 



4946 Lagrula, J., Etüde sur les occultations d'amas d'Etoiles par la Lüne, avec un 

 catalogue normal des Pleiades. Lyon 1901. gr. in-8. 154 pg. av. figures. 8 



4947 Naber, S. P. H., Zeemans Handboek. Deel I. 's Gravenhage 1901. 8. 20 



4948 Nyren et Ivanof, Observations faites au cercle vertical de l'Observatoire central 

 Nicolas (Poulkova). St.-Petersbourg (Public. Obs. centr.) 1901. gr. in-4. 639 pg. 40 



4949 Palmer, H. K., The Distribution of Stars in the Cluster Messler13, in Hercules. 

 Chicago (Astrophys. Journ.) 1899. roy. 8. 9 pg. with 2 figures. 1 



4950 Pickering, E. C, A Photometrie Durchmusterung, including all Stars of the 

 magnitude 7. 5 and brighter, north of Declination — 40°, observed with the Meri- 

 dian Photometer during the years 1895 -98. Cambridge, Mass. (Ann. Observ. 

 Harv. Coli.) 1901. 4. 330 pg. 25 



4951 Pingre, A. G., Annales Celestes du 17. siecle. Ouvrage publik sous les auspices 

 de l'Academie des Sciences par G. B ig ourd an. Paris 1901. 4. 11 et 629 pg. 36 



•4952 Präcisions-Nivellement, Schweizerisches. — Die Fixpunkte des Schweizerischen 

 Präcisions-Nivellements. Les reperes du Nivellement de precision de la Suisse. 

 Lieferung XII. Bern 1901. fol. 7 u. 47 pg. m. 1 Karte u. Holzschnitten. 4 



4953 Pnblications de l'Observatoire central Nicolas (Poulkova), sous la direction de 

 O. Backlund. Sörie 2. Volumes VI et VIII. St.-Petersbourg 1901. gr. in-4. 64 



Vol. VI: Romber#, H., Observations faites au cercle meridien. 392 pg. M. 24. — Vol. VIII: 

 Nyr6n et Ivanof, Observations faites au cercle vertical. 639 pg. M. 40. 



4954 Pnblications of the United States Naval Observatory. New Series. Volume I. 

 Washington 1900. 4. 108 and 402 pg. cloth. 20 



Cont.: Harkness, W., and Skinner, A. N,, Transit circle observations of the Sun, Moon, 

 Planets and miscellaneous Stars, 1894—99. 



Report on the Astrophysical Observatory, Smithsonian Institution — see nr. 4580. 



4955 Report of the Superintendent (H. S. Pritchett) of the United States Coast 

 and Geodetic Survey, showing the progress of the work from July \, 1898 to 

 June 30, 1899. Washington 1900. 4. 964 pg. with 29 maps, 14 plates (1 colored) 

 and 15 figures. cloth. 25 



Cont.: Pritchett, H. S., Details of field work (with 25 maps and 3 plates) — Pres ton, E. D., 

 The international Geodetic Association for the measurement of the Earth (with \ map). — Smith, 

 E., Determinations of Gravity at Worcester, Mass., and New York City. — Winston, J., Tilton, 

 B. E., and Ferguson, O. W., Resulting elevations from Spirit Leveling between Denver, Col., and 

 Rock Creek, Wyom., Abilene, Kans., and Norfolk, Nebr., Gibraltar, Mich., and Cincinnati, Oh. — 

 Hayford, J. F., Precise Leveling in the United States (with 1 map and 8 plates). — Baylor, 

 J. B., and Hazard, D. L., General report on the Magnetic Survey of North Carolina (witb 2 maps 

 and 2 plates). — Bauer, L. A., The Magnetic Work of the ü. S. Coast and Geodetic Survey. etc. 



4956 Romberg, EL, Observations faites au cercle meridien de l'Observatoire central 

 Nicolas (Poulkova). St.-P6tersbourg (Public. Obs. centr.) 1901. gr. in-4. 392 pg. 24 



4957 Vogel, H. C, Der spektroskopische Doppelstern Mizar. Berlin (Sitzungsb. Akad.) 



1901. gr. 8. 5 pg. O50 



E. Friedländer & Sohn in Berlin. 



Wir liefern znm ermässigten Preise von 10 Mark: 

 Sawitsch«. A., Abriss der praktischen Astronomie, vorzüglich in 

 ihrer Anwendung auf geographische Ortsbestimmung. Nach der 

 2. russischen Original- Ausgabe unter Mitwirkung des Verfassers neu 

 herausgegeben von C. F. W. Peters. 1879. gr. 8. (Ladenpr. 20 Mark.) 



