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Sitzungsberichte der konigl. Rôhmischen Gesellschaft der Wissenschaften 

 Classe. Jahrgang 1 892-1893. Prag, 1893- 1894; 2 vol. in-8". 



Aslronomical and magnetical and meteorological obsen'ations, made at the 

 royal ohservatory Greenwich in the year 1891. Under the direction of 

 W.-H.-M. Christie, m. A. F. R. S., Astronomer royal. London, iSgS; 

 I vol. in-4°. 



Helcometer observations for détermination of stellar parallax , made at the 

 royal observatory Cape of Good Hope, by David Gill. London, iSgS; 

 I vol. gr. in-8°. , 



