85 



OTHER POSITIONS 



ASCERTAINED ANIJ USED TO CONTINUE THE CHAIN OF MERIDIAN DISTANCES. 



Not included in the Survey. 



Lat. 

 South. 



Long. 



Var. 



East. 



H.W. 



R. iiS. 





/ 



// 



; // 



/ 



h. m. 



Feet. 



Otaheite — Point Venus* — extremity 



17 29 



15 



149 30 00 



7 54 



Noon- 



1 



* By continuing the chain of meridian dis-' 











every 





tances westward from Bahia (in Brazil), 











day. 





Otaheite (Point Venus extremity) would [ 



be in J 



And by taking the measures eastward fromi 

 Bahia / 







149 34 30 













149 26 14 









The mean of the two is .. 







149 30 22 









The longitudes in the following list, from New 















Zealand to Ascension, are obtained by adding 















the meridian distances eastivard from Bahia. 







EAST, 









New Zealand — Bay of Islands — Paihia Islet 



36 16 



30 



174 09 45 



14 00 



9 «6 



6 N.W. 



Sydney — Fort Macquarrie — flag-staff 



33 51 



30 



151 17 00 



10 24 



7 36 



6 



Paramatta — Observatory 







151 04 00 









Hobart Town— Fort Mulgrave 



42 53 



30 



147 24 15 



11 06 



8 00 



5 w. 



King George Sound — Princess Royal Har-"!^ 

 bour — New Government Buildings ... J 



35 02 



10 



117 56 30 



WEST. 



5 36 



8 00 



4 E. 



Keeling Islands — Direction Island— west! 















point J 



12 05 



22 



96 54 45 



1 12 



5 27 



5 N. w. 



Mauritius— Port Louis — Observatory 



20 09 



25 



57 31 30 



11 18 



1 02 



2 N.W. 



Cape of Good Hope — Simons Bay^east end"\ 

 of Dock Yard / 



34 11 



24 



18 25 45 



28 30 



2 30 



5 



Royal Observatory 







18 28 30 









St. Helena — high water mark, in the meri-1 







WEST. 









dian of Observatory J 



15 55 



15 



5 42 45 



18 00 



4 50 



3w. N. w 



Ascension — Barrack Square 



7 55 



33 



14 24 15 



«3 30 



5 30 



2 w. 



By the Beagle's Chronometers, the meridian' 















distances between Falmouth, Plymouth, 1 















Portsmouth, aiid Greenwich, are as fol- ( 















lows : — J 















Portsmouth Observatory — R.N. College — "1 

 from Greenwich Observatory J 







1 0607-5 











■ 





Devonport (Government House) — from^ 













Portsmouth Observatory / 







3 03 49 '5 



N. 



B. — These are 



Pendennis Castle — Falmouth — from Devon-\ 

 port (Government House) J 



And Falmouth — Pendennis Castle— west ofl 









ident 



\ 



ical with the 







52 46-5 



/ meas 

 Tiarc 



ures ot Dr. 

 'ks. 





Greenwich J 







5 02 43-5 



- 







■ 





1 



In the foregoing Table, every position, variation, and notice of tide, is the result of observations 

 ' made by officers of the Adventure or the Beagle, therefore they are, strictly .speaking, original, 

 and have no reference whatever to observations made by other persons. 



An explanation of the methods and instruments used, and of the basis on which the longitudes, 

 especially, are founded, is given, in an abridged form, at the end of the Appendix. 



The positions of those points only are given which are considered to be, generally speaking, 

 satisfactorily ascertained by actual observation on shore, or well connected by triangulation to those 

 stations at which the artificial horizon was used. 



Where tidal notices are given opposite to summits of mountains, or other places at some dis- 

 tance from the sea, it is to be understood that they refer to a point at which the sea approaches 

 nearest to that specified. 



