1891.] NEW YORK ACADEMY OF SCIENCES. 99 



Bestammandet af en Planets massa medelst iakttagelser af satelliternas 

 indbordes liigen. Af O. Backlund (Proc. R. Swedish Acad., 1882). 



III., 51. 



Bestimmung des Masse des Planeten Jupiter aus Heliometer Beobach- 

 tungen der Abstande seiner Satelliten. Von Dr. W. Schur (Nova 

 Acta der Leop. Carol. Acad., Band XLV., Halle, 1882). 



Logarithmisch-trigonometrisches Handbuch auf fiinf Decimalen bear- 

 beitet von E. Becker. Leipzig, 1882. 



Observations of the Transit of Venus, made at the Washburn Observa- 

 tory, Madison, Wisconsin, 1882, December 5-6, By E. S. Holden 

 (Anier, Journal, 1883). 



Madeira Spectroscopic, being a Revision of 21 places in the Red Half 

 of the Solar Visible Spectrum with a Rutherford Diffraction Grat- 

 ing at Madeira during the Summer of 1881. By C, Piazzi Smyth 

 (Edinburgh, 1882;. 



The illustrated Account given by Hevelius in his " Machina Celestis" 

 of the Method of mounting his Telescopes and erecting an Obser- 

 vatory. Reprinted from an original copy, with some Remarks. By 

 C. Leeson Prince (1882). 



Neue Reduction der Bradley'schen Beobachtungen aus den Jahren 1750 

 bis 1762. Von Arthur Auwers. Zweiter Band (St. Petersburg, 1882). 



Thirty-seventh Annual Report of the Director of the Astronomical Ob- 

 servatory of Harvard College. By E. C. Pickering. 



Memoire sur la Grande Comete australe du mois de Fevrier 1880. Par 

 M. Wilhelm Meyer (Mem. de la Soc. de Physique de Geneve, T. 

 XXVIII.). 



III., 79. 



Monograph of the central Parts of the Nebula of Orion. By Edward S. 

 Holden (Wash. Obs. for 1878, App. I.). 



Publications of the Washburn Observatory of the University of Wis- 

 consin. Vol. I, (Madison, 1882), 



III., 111. 



UntersuchuDgen tiber die Pracessionsconstante auf Grund der Stern- 

 cataloge von Lalande und Schjellerup. Inaugural-Dissertation von 

 F. Bolte. Bonn, 1883. 



IH., 127. 



Resultate aus den in Pulkowa angestellten Vergleichungen von Pro- 

 cyon mit benachbarten Sternen. Von Ludwig Struve. St. Peters- 

 burg, 1888. 



III., 145. 



Publicationen des astrophysikalischen Observatoriums^ zu Potsdam, 

 Dritter Band. Potsdam, 1883. 



III.,U85. 



L* Aberration desEtoiles fixes. Par Magnus Nyren (Mem. de I'Acad. Imp. 



de St. Petersbourg, 1883). 

 The Parallax of a Lyrsn and 61 Cygni. By Asaph Hall (Wash. Obs., 



1879, App. I.). 



