APPENDIX. 359 



name, viz. : Bumkay's, Quekin's, &c, and their existence and position 

 remain to be ascertained. 6. The island of Arrecifos has, so far as 

 my knowledge extends, been seen only by the ship Providence, in the 

 year 1811. Not knowing much respecting it, it is to be wished that it 

 should be surveyed. 



XXL* The Island of Gilbert. — At the end of my supplementary 

 volume, I have pointed out what remains to be done in order to have 

 a perfect knowledge of all the islands belonging to this archipelago. 



Remark. — Independent of the American Exploratory Expedition, 

 there are to be at the same time three others in the South Seas : two 

 English and one French expedition. Many of the islands will of 

 course be visited by all the expeditions ; and it is to be apprehended 

 that their longitudes, determined by the different astronomers of the 

 expeditions, will, perhaps, not agree so well as might be wished. This 

 difficulty will of course be obviated, by referring their astronomical 

 observations to the longitudes of such places as are determined by 

 absolute astronomical observations with the greatest precision, and 

 those most likely to be visited by the ships of the expeditions. The 

 positions we have in the South Seas, are Point Venus, in longitude 149° 

 29' 17" W., determined by the passage of Venus over the disk of the 

 sun ; Port Honolulu, in the island of Oaho, by occultation of several 

 stars, in 202° 10' E. ; and Port Jackson, Sydney Cove, in 151° 17' E., by 

 an eclipse of the sun. In the northern part of the Pacific, East Cape 

 190° 16' 10" E., may be adopted as a well-fixed point, although not 

 determined by absolute astronomical observations. With respect to the 

 coast of South America, Talcahuana, the longitude of which was deter- 

 mined by Captain Beechey, to be in 72° 56' 59" W., seems to me a 

 well-determined point. Captain Duperrey is not of that opinion ; and 

 it remains to be settled whether the longitude of Talcahuana, or Valpa- 

 raiso, in 71° 33' 34" W., deserves the preference. 



Krusenstekn 

 St. Petersburg, January 26, 1837. 



VI. 



U. S. Ship Vincennes, 



Hampton Roads, August 14th, 1838. 

 Sir, — 



I have the honour to state, that since my arrival here, I have 

 examined the General Requisition, complained of by Commodore 

 Warrington and the Commissioners of the Navy, and find (as I was 

 well aware was the case) it duly approved by me. 



