442 APPENDIX. 



of, by taking careful soundings, &c. This, it is presumed, you will 

 finish to-morrow. You will proceed the next day to survey the bay 

 of Nandi, if you should hear nothing from me in the mean time ; and 

 after completing that work, you will proceed to Passage Island, where 

 you will remain a day, for the purpose of proving the observations 

 heretofore made there ; thence to Sandalwood Bay, by the way of the 

 sunken patches of coral leading from the main reef, which you will 

 carefully explore, where you will find me or orders. 



The former orders, relative to your intercourse with the natives, 

 must be observed strictly : they are only revoked so far as respects 

 landing for the necessary observations ; and you must on no account 

 omit the necessary precautions, as if you were apprehensive of an 

 attack from them, viz. : that of arming yourselves well. 



The tides must be carefully observed, to ascertain the times of high 

 and low water, in the way I have indicated to you, and their direction 

 in ebb and flood, together with their strength by the current log. 

 You will note, at the time, particularly the trending of reefs and land 

 in places. 



If the ship should be seen by you to-morrow evening off Kombe- 

 lau, you will hoist two lights at the cutter's masthead, anchored off 

 the point of the reef, and also one in the launch, near the place of 

 anchorage. 



If you should at any time discover this ship, or any boats or vessels 

 of the squadron, you will endeavour to have one of your boats in 

 signal distance, and keep a good look-out for them. 



One thing more, which is, that you will take nothing for granted 

 that your pilot may say, but see for yourself until you are satisfied. 



I am, &c, 



Charles Wilkes, 



Commanding Exploring Expedition. 



Lieutenant 0. H. Perry. 



U. S. Ship Vincennes, 



Mbua Bay, July 9th, 1840. 



Sir, 



You will proceed, in charge of the Peacock's second cutter, taking 

 with you Mr. Blunt, and Mr. Hunt the missionary, around the north 

 end of Vanua-levu, towards Somu-somu. The first night you will 

 reach the island of Tavea, but if the wind should favour you, you 



