85 



OTHER POSITIONS 



ASCERTAINED AND USED TO CONTINUE THE CHAIN OF MERIDIAN DISTANCES. 



Not included in the Survey. 



Lat, 

 South. 



Long. 

 West. 



Var. 

 East. 



Otaheite— Point Venus* — extremity 



* By continuing the chain of meridian dis- 

 tances westward from Bahia (in Brazil), 

 Otaheite (Point Venus extremity) would 

 be in 



And by taking the measures eastward fromi 

 Bahia J 



The mean of the two is 



The longiiudes in the following list, from New 

 Zealand to Ascension, are obtained by adding 

 the meridian distances eastivard from Bahia. 



New Zealand — Bay of Islands — Paihia Islet 



Sydney — Fort Macquarrie — fiag-stalf 



Paramatta — Observatory 



Hobart Town— Fort Mulgrave 



King George Sound — Princess Royal Har-~\^ 

 hour — New Government Buildings ... J 



Keeling Islands — Direction Island — west) 

 point J 



Mauritius — Port Louis — Observatory 



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

 of Dock Yard J 



Royal Observatory 



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



dian of Observatory J 



Ascension — Barrack Square 



By the Beagle's Chronometers, the meridian] 

 distances between Falmouth, Plymouth, [ 

 Portsmouth, and Greenwich, are as fol- ( 

 lows : — J 



Portsmouth Observatory — R.N. College — "(^ 

 from Greenwich Observatory j 



Devonport (Government House) — from"! 

 Portsmouth Observatory J 



Pendennis Castle — Falmouth — from Devon- \ 

 port (Government House) « J 



And Falmouth — Pendennis Castle — west of 1 

 Greenwich J 



17 29 15 



36 16 30 



33 51 30 



42 53 30 



35 02 10 



12 05 22 

 20 09 25 



34 11 24 



15 55 15 



7 55 33 



o / // I o 

 149 30 00 7 



149 34 30 



149 26 14 

 149 30 22 



EAST. 

 174 09 45 

 151 17 00 

 151 04 00 



147 24 15 



117 56 30 



96 54 45 

 57 31 30 

 18 25 45 

 18 28 30 



M'EST. 



5 42 45 



14 24 15 



I 06 07-5', 



3 03 49 '5 

 o 52 46-51 



5 02 43-5' 



54 



14 00 



10 24 



11 06 



WEST. 



5 36 



1 12 

 11 18 



28 30 



18 00 

 13 30 



H.W. 



h, m. 



Noon 

 every 

 day. 



9 16 



7 36 



8 00 



« 00 



5 27 



1 02 



2 30 



4 50 



5 30 



R. & S. 



Feet. 



5 N. w. 

 2 N. \X. 

 5 



3W.N.W 

 2 w. 



N. B. — These are 

 identical with the 

 measures of Dr. 

 Tiarcks. 



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 Ap])endix. 



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

 satisfactorily ascertained by actual obrervation 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. 



