92 cook's second voyage august, 



and the island of Erronan or Footoona east, in the 

 same direction, distant eleven leagues. This, which 

 is the most eastern island of all the Hebrides, did 

 not appear to be above five leagues in circuit, but of a 

 considerable height, and flat at top. On the N. E. 

 side is a little peak, seemingly disjoined from the isle, 

 but we thought it was connected by low land. 



Annattom, which is the southernmost island, is 

 situated in the latitude of <2G° 3', longitude 170° 4', 

 and S. 30° East, eleven or twelve leagues from Port 

 Resolution. It is of a good height, with an hilly 

 surface ; and more I must not say of it. 



Here follows the lunar observations by Mr. Wales, 

 for ascertaining the longitude of these islands, reduced 

 by the watch to Port Sandwich in Mallicollo, and 

 Port Resolution in Tanna. 



H 



~ ( Mean of 10 sets of observ. before - 167° 5& 33" j 

 2 Ditto, at 168 2 37 | 



c: $1 - - 20 Ditto, - - - - after 167 52 57 



© Q 



Ah fc 



< [ Mean of those means, 167 57 22 £ 



s? fMean of 20 sets of observ. before - 169 37 35 ) P 



jh 2 I - - 5 Ditto, ----- at 169 48 48 { r £ 



\ 



o%< - - 20 Ditto, - - - - after 169 47 22 lj 

 w I Mean of those means, 169 44 35 



It is necessary to observe, that each set of observ- 

 ations, consisting of between six and ten observed 

 distances of the sun and moon, or moon and stars, 

 the whole number amounts to several hundreds ; 

 and these have been reduced, by means of the watch, 

 to all the islands ; so that the longitude of each is 

 as well ascertained as that of the two ports above- 

 mentioned. As a proof of this I shall only observe, 

 that the longitude of the two ports, as pointed out 

 by the watch and by the observations, did not differ 

 two miles. This also shows what degree of accuracy 

 these observations are capable of, when multiplied to 

 a considerable number, made with different instru- 



