OBSERVATIONS. 



From the Greenwich, volumes we obtain the meridian observations, 

 D. OBSERVATIONS OF VENUS I. WITH THE GREENWICH MURAL CIRCLE. 



VENUS I. 



Observations with the Greemvich Mural Circle. 



To which are added finally the two observations at Altona, (A.N. XXXIII, 23.) 

 E. OBSERVATIONS OF VENUS I. WITH THE ALTONA MERIDIAN-CIRCLE. 



VENUS I. 



Observations with the Altona Meridian-Circle. 



CENTER. 



