OPPOSITION OF MARS, 1849-50. 



MICROMETRICAL OBSERVATIONS, 



WITH 



THE 8^-FEET EQUATORIAL, 



AT THE 



ROYAL OBSERYATORY, CAPE OF GOOD HOPE 



BY THOS. MACLEAR, ESQ., R E. A. S. f &c., 



HER MAJESTY S ASTRONOMER AT THE CAPE. 



