70 Transactions. 



Based on the present value of Sydney, 10 h. 4 lu. 49*54 s.. 

 and the 1883 value, Sydney- Wellington, 1 h. 34 m. 15-77 s., 

 gives the longitude of Wellington (N.Z.I, report, 1902, p. 442) 

 11 h. 39 m. 5-31 s. This requires the correction of — 0*185 s., 

 the same as applied to Sydney for the adopted value of Madras, 

 dependent upon the work of Professor Albrecht and Major 

 Burrard. We have then for the value of Wellington via Madras- 

 Sydney, 11 h. 39 m. 5125 s. 



The Canadian value is 11 h. 39 m. 5*087 s. Difference, 

 0*038 s., or 0-57", or 43 ft. 



We have at Wellington, then, another closing of the girdle of 

 the world, as we had the first at Sydney. 



The weakest link, yet good, in the longitude of Wellington 

 is the personal equation of the two observers ; all the other links 

 are very strong. The observations therefor were made with 

 the same (Wellington) instrument, as it was impracticable to 

 build another pier and mount my Cooke transit there. 



A final word in closing. Gratifying as the above closing- 

 error is, it is questionable whether one would be justified at the 

 present time, with Our improved methods, in making a circuit 

 of the globe in longitude, with the number of stations necessary 

 therefor, in expecting d priori a closing-error of less than one- 

 tenth of a second. 



The task that Canada set out to perform, to bind Australia, 

 New Zealand, and the Pacific islands to Canada by the " all-red 

 line," thereby completing the first astronomic girdle of the 

 world, has been successfully accomplished. 



