50 PROCEEDINGS OF SECTION A. 



from Vladivostock to Singapore by Lieut. Commander Davis and Lieut. 

 Norris, of the United States Navy, who also continued the chain as 

 far as Madras.* 



The results of this work were not utilized in deducing the Longi- 

 tude of Port Darwin adopted in 1894, because the closing error being 

 about half a second of time it was concluded that 0T\dng to the diversity 

 of conditions and the greater disadvantages under which this longer 

 series was carried out, any weight given to it would have tended more 

 probably to vitiate than to improve the value of the Longitude of Singa- 

 pore derived from the more direct chain through Persia and Lidia, 



Dr. Klotz evidently came to the same conclusion, as he did not use 

 this series in adopting a value of the Longitude of Madras as a basis 

 for the Longitude of Sydney which he employed for the comparison of 

 the latter with liis value of the same derived from trans-Pacific longi- 

 tudes.f 



Since no new measurements have been made between Madras 

 and Australia, the probable value which can be assigned to the Longi- 

 tude of Port Darwin at present is as follows : — 



H. M. S. 



Adopted Longitude of Madras .. .. 5 20 59-246 E. 



Interval Madras-Singapore (Commander Green 



and Lieut. Norris, 1882) .. .. 134 25-58 



Singapore-Port Darwin (Darwin and Baracchi, 



1883) .. .. .. .. 1 47 57-49 



Longitude of Port Darwin .. .. 8 43 22-316 E. 



This new value is only 0-024s. smaller than that adopted in 1894. 



The laying of the Cable across the Pacific Ocean from Vancouver 

 to Australia, and New Zealand, some 8,273 nautical miles in length, 

 was completed towards the end of the year 1902. It connects three 

 intermediate stations on its course, namely. Fanning Island, Suva 

 (Fiji), and Norfolk Island, and branches from Norfolk Island to South- 

 port, in Queensland, and to Doubtless Bay, in New Zealand. The 

 length of these various sections are given by Dr. Klotz as foUowf, 

 page 35 : — 



From Vancouver to Fanning Island . . 3,654 nautical miles 



Fanning Island-Suva (Fiji) . . 2,181 ,, ,, 



Suva-Norfolk Island . . .. 1,019 ,, ,, 



Norfolk Island-Southport (Queens- 

 land) . . .. .. .. 906 „ 



Norfolk Island-New Zealand . . 513 „ „ 



* Telegraphic Datermination of Longitudes in Japan, China, and the East Indies. 1881- 

 1882. By Lieut. Commanders F. M. Green and C. H. Davis and Lieut. J. A. Norris, U.S.N. 



t otto Klotz, LL.D. Transpacific Longitudes between Canada and Australia and New 

 Zealand. 1903-1904. 



