88 



OPPOSITION OF MARS, 1851-52, 



Remarks. 



At the commencement of observations both objects were flaring and very unsteady, the atmosphere being loaded with moisture, and its tempera 

 ture falling. 



a Image tolerably sharp. c Sharp and steady. The white zone about the north 



b Very sharp, but not perfectly steady. pole of Mars distinctly visible and marked by a dark 



line, the zone appearing nearly one-sixth of the di 

 ameter of the planet. 

 d Recorded 8fi. 34m. 



Results. 



