66 



Transactions. 



of the Surveyor-GeBeral, Mr. J. W. A. Marchaiit, the District 

 Surveyor, Mr. V. J. Blake, made a connection of the triangula- 

 tion from Station 20 on the west side of the entrance to Ma- 

 ngonui Harbour to the observatory, and by that means obtained 

 the position of the observatory in terms of the New Zealand 

 initial station and meridian. At Doubtless Bay the super- 

 intendent of the cable-station, Mr. C. L. Hertslet, rendered in- 

 valuable services both in the cable and land-line exchange of 

 signals. His thorough knowledge of the circuits quickly over- 

 came any difficulties or mishaps that arose. 



Six independent determinations of difference of longitude 

 between Doubtless Bay and Norfolk were obtained, and the same 

 number between Doubtless Bay and Wellington. 



We will now deduce the longitude of Doubtless Bay, giving 

 the various transpacific arcs determined in 1903. 



