58 



TRANSIT OF VENUS, 1874. HONOLULU. 



(2.) Observer, NICHOL. 



Coming now to the actual transit, the time of contact may be inferred from 

 each cusp-measure with great facility, since the local tabular distance of 

 centers has been computed for each recorded time. 



The inferred times are given in Tables B and C affected by a quantity 

 depending on 8 r. Considering the internal contact only, we have the 

 following means of the times from the cusp measures : 



G. Sid. Time. 

 Tupman 7 h . i8 m . 4'g -f 4-52 8 r where 8 r = + o" m j6. 



Nichol 7 h . i8 m . io 8 'o + 5'g3Sr where S r = + o"'2g. 



