C—l.

Table 7. —Correction of Clock Times at the Mean of Exchanges, etc.— continued. To find the Weights to be given to each day's work.

Difference of Longitude and Probable Error, applying weights as found above.

x*6745=*020s' Difference of Longitude, Sydney-Wellington =lh. 34m. 16-9835. + -020.?.

SxW Difference of Longitude and Probable Error, applying weights proportional to S+W where S=number of stars observed at Sydney, and W=number of stars observed at Wellington on each night of exchange.

Difference of Longitude, Sydney-Wellington =lh. 34m. 16-9855. ±-020s.

24

Date. New Zealand. Sydney. Exchange. V[rf] l 100 [r o «J P1883. December 5 . 15 „ 16 18 •027 •017 •024 •018 n •012 •014 •Oil ■012 ■005 •003 ■004 •003 •030 •022 •027 •022 11 20 14 21 i 3 6 4 6

Date. Difference of Longitude. _>• Products. v. vv. pvv. 1883. December 5 15 „ 16 „ 18 H. M. S. 1 34 16-996 16-978 17-066 16-926 3 (i 4 (S s. 50-988 101-868 68-264 101-556 + •013 -■005 + •083 -■057 •0002 ■0000 •0069 •0033 •0005 ■0002 •0276 •0194 19 ; 322-676 16-988 •0477

Date. Difforcnco of Longitude. Nun of Cloc: obsc: i iber t Stars p. rved. Products. V. vv. pvv. 1883. December 5 • 15 16 • 18 H. M. S. 1 34 16-996 16-978 17-066 16-926 S. 4 9 7 11 w. 20 25 16 16 2 4 3 4 S. 33-992 67-912 51-198 67-704 + •011 -■007 + •081 -•059 •0001 •0000 ■0066 •0035 •0002 ■0002 •0197 •0139 13. )__220-806_ 16-985 " •0340