83 



combined results of tlie observations of different persons would furnish 

 a most reliable initial longitude. The method of vising a corrected 

 Ephemeris, instead of depending on actual observations at Greenwich 

 for differences of right ascension, has in my opinion advantages for New 

 Zealand, since about 60 per cent, of the moon's meridional tiansits are 

 lost tlii'ough unfavourable weather. 



Abstract of Longitudes, — Hutt Observatory, 1870, (arranged in 

 order of their magnitudes.) 





Date. 





Longitude. 



Prob- 

 able 

 eiTor 



Weight 



No. 





S.^ 



Longitude. 



Prob- 

 able 

 error 





No. 









Date. 



o a 









Weight 







^-^ 



H. 



m. 



s. 



s. 









g=i 



H. 



m. 



s. 



s. 





1 



June 9 



I 



11 



39 



39-95 



5-9 



0-747 



20 



Oct. 14 



II 



11 



39 



51-62 



6-4 



0-635 



2 



May 11 



I 







44-89 



5-8 



0-773 



21 



June 14 



II 







52-01 



5-2 



0-962 



3 



July 19 



n 







45-41 



7-3 



0-488 



22 



May 17 



II 







52-15 



51 



1-000 



4 



July 5 



I 







45-45 



6-1 



0-699 



23 



Oct. 5 



I 







52-98 



6-2 



0-677 



5 



July 7 



I 







45-58 



6-0 



0-722 



24 



Aug. 9 



I 







53-08 



5-4 



0-892 



6 



Sept. 4 



I 







46-45 



53 



0-926 



25 



Sept. 3 



I 







53-54 



5-5 



0-860 



7 



July 10 



I 







47-20 



5-2 



0-962 



26 



Aug. 7 



I 







53-97 



5-4 



0-892 



8 



Aug. 6 



I 







47-32 



5-4 



0-892 



27 



Sept. 9 



I 







54-60 



6-7 



0-579 



9 



July 13 



II 







47-37 



5-4 



0-892 



28 



Oct. 3 



I 







55-12 



5-6 



0-829 



10 



May 7 



I 







47-45 



6-0 



0-722 



29 



Aug. 13 



II 







55-18 



6-7 



0-579 



11 



June 16 



II 







48-05 



5-6 



0-829 



30 



June 21 



II 







55-72 



7-3 



•0-488 



12 



July 6 



I 







48-67 



6-1 



0-699 



31 



July 18 



II 







55-93 



7-2 



0-502 



13 



July 16 



II 







48-94 



6-5 



0-616 



32 



July 20 



II 







56-02 



7-2 



0-502 



14 



July 9 



I 







49-19 



5-7 



0-801 



33 



Sept. 2 



I 







56-18 



5-5 



0-860 



15 



Aug. 11 



11 







49-47 



6-2 



0-677 



34 



Sept. 7 



I 







57-01 



5-9 



0-747 



16 



Oct. 6 



I 







49-57 



6-6 



0-598 



35 



Oct. 7 



I 







57-56 



7-0 



0-531 



17 



Oct. 15 



II 







51-21 



6-2 



0-677 



36 



Oct. 9 



I 







57-88 



7-3 



0-488 



18 



Jiine 18 

 Oct. 9 



II 

 II 







51-40 

 51 -54 



6-4 



7-2 



0-635 

 0-502 

















19 







M 



;an Longitude | 

 by weig-hts ) 



11 



39 



50-73 



1-0 



25-880 



15. "Notice of a new form of Cetacean Tooth," by Dr. Knox. 

 (See Transactions.) 



16. "Notes on the Chatham Islands and their Inhabitants," by 

 Major Gilbert Mair ; communicated by His Honor W. Rolleston, 

 Superintendent of the Province of Canterbury. (See Transactions.) 



17. "On the absence of the Eel from the upper waters of the 

 Waiau-iia and its tributaries," by W. T. L. Travers, F.L.S. (See Trcms- 

 actions.) In this paper the author attributes the absence of the Eel 

 from the district in question, to the necessity for its migration to the sea, 

 or to the warmer parts of the river, during the spawning season, and the 

 inability of the fry, oi- even of the adult fish, to re-ascend the river 

 beyond a ceitain line of rapids referred to. 



18. "Notes upon a New Zealand Flesh-fly," by W. T. L. Travers, 

 F.L.S. (See Transactions.) The author describes, in this paper, the 

 " Blue-bottle-fly " common to New Zealand, which he considers is 

 indigenous, and not introduced into this colony as is generally supposed. 



