APPENDIX. 449 



If there are any of the crew of the Porpoise who are on the sick- 

 list, and unfit for duty, you will send them, with their bags and 

 hammocks, to this ship. 



As many specimens, sketches, &c, as possible, will be obtained, as 

 usual by the officers; also observations, &c, noted. 



The presents for natives will be exchanged for specimens, also 

 fresh provisions, &c, for the crew. 



Wishing you a successful cruise, 

 I am, &c, 

 (Signed) Charles Wilkes, 



Commanding Exploring Expedition. 



Lieut. Com. C. Ringgold, 



U. S. Brig Porpoise. 



VI. 



U. S. Ship Vincennes, 



Harbour of Pago-pago, October 13th, 1839. 



Sir, 



You will, with the Peacock and Flying-Fish under your com- 

 mand, proceed to the next island of this group, called Upolu, and 

 enter the harbour of Apia, situated on the northern side, and will 

 remain while the Flying-Fish and your boats are making a survey of 

 it, by circumnavigating it, and making all possible observations, 

 sketches, &c. 



The officers sent in the schooner and boats will be careful to 

 examine and survey any harbour or shelter that may be found, 

 making sketches of their approach, and surveys ; also observations to 

 determine their situation, &c. 



You will also make a careful survey of the harbour of Apia. 



Every facility will be afforded to the scientific corps, for making 

 collections and observations on shore ; all information possible will 

 be obtained from the missionaries and others, relative to the island ; 

 as to the population, productions, soil, number of white mis- 

 sionaries, &c. 



You will remain at Apia until you hear from me, or until you have 

 completed the duties required, which I deem five days amply suffi- 

 cient for. One of the officers of the Porpoise was left to superintend 



VOL. II. 113 



