PLATE II. 



New and Old Orbits of Comet Brooks. The present orbit of the 

 comet is the small ellipse on which the position of the comet is shown 

 at the time of its discovery in 1889. The old orbit of the comet is 

 the large ellipse on which the position of the comet in 1881 is shown. 

 The appulse to Jupiter occurred in 1886 in longitude 188°, near the 

 point of tangency of the two ellipses . 



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