OPPOSITION OF MAES, 1849-50, 



6 ) 3.678 rev. = 0.613 re?. = 15".98. 

 One revolution of micrometer = 38". 05925. 



Mara compared with II. C 10669. The star became faint on the approach of the planet, and finally could not be distinguished. The several 

 powen were tried In succession without avail. The above observations were made after the tar escaped from the rays, and by repetition, using the 

 11 driving clock, 1 ' as when measuring double Mars. The measures arc in declination between the star and the planet's cenin. The star still too faint 

 for good wotk. Power 161 employed. Planet's centre true tooth of star. 



