Astronomy. 



365 



Inclination of orbit - 33 



Log. Perihelion disk 

 Eccentricity - 



Revolution 



Motion - - • direct 



Shumacher's Astron. Nach. No. 90. 



5. Dimensions of the Terrestrial Globe. — The following dimensions have 

 been deduced by M. Puissant from the measures taken in France and In- 

 dia. 



1 



Flattening at the Poles 



Semiaxis a == 6376920 metres 



b = 6356076 



Quarter of the Meridian = 10000401 metres. 



305,65 



6. La Lande's Astronomical Prize adjudged to Captain Sabine. — At the 

 public sitting of the Academy of Sciences, held on the 5th June 1826, the 

 medal founded by M. De La Lande was adjudged to Captain Sabine, for his 

 work entitled, Account of Experiments to determine the Figure of the Earth, 

 by means of the Pendulum vibrating Seconds in different Latitudes ; a work 

 with which our readers are in some degree acquainted, by the extracts 

 from it which we have inserted in this Journal. 



7. Rates of Mr French's Chronometers at the Royal Observatory. — 

 The following were the mean daily rates and extreme variations of two chro- 

 nometers by Mr French, during their trial at the Royal Observatory, from 

 May 1, 1825, to April 30, 1826. 



1825. 



1826. 



8. Probability of an Ethereal Medium in the Celestial Spaces. — The 

 singular fact of the diminution of the periodic time of the comet of Encke, 

 which cannot be explained by the perturbations of the planets, has been 



