422 



APPENDIX. 



I. — Continued. 



EXPERIMENTS MADE ON BOARD U. S. SHIP PEACOCK, AUGUST 25TH, 1840. 



TIME. 



sun's alt. 



SKY. 



DEPTH POT SEEN. 



CURRENT. 



10 A. M. 



53° 30' 



Clear. 



17 fathoms. 



3i 



fathoms south-by-west. 



11 " 



69 





17 " 



3| 



cc cc 



12 noon. 



78 





17 



H 



C fathoms south-by-west 

 I three-fourths west. 



1 P. M. 



70 





16 " 



n 



" south-by-west. 



2 " 



56 





17 " 



2 



cc cc 



3 " 



41 





15 " 



2 



cc cc 



4 " 



27 





15 " 



li 



" south. 



5 " 



12 





15 " 



n 



" south-by-east. 



II. 



U. S. Ship Vincennes, 



Tongataboo, May 4th, 1840. 



Sir, 



Herewith you have enclosed a chart of the Feejee Islands, in which 

 you will find the eastern group, including the reefs, marked in red, 

 which it is my intention you shall examine and survey, in as par- 

 ticular a manner as possible ; beginning at the southern ones and 

 proceeding thence northward, to and fro, as you may find it ad- 

 vantageous and the winds and weather will permit. 



I would desire that nothing may escape you, and that you preserve 

 the usual manner of surveying them that has been adopted in our 

 former surveys. 



You will keep particular notes relative to the passages through 

 them, with the dangers that are to be avoided, and how they may 

 be, taking sketches of their appearances ; the set of currents, and the 

 harbours, if any, to afford shelter for large or small vessels. The 

 supplies to be afforded, including wood, water, provisions, &c. 



On reaching Lakemba, you will obtain a pilot. There is one, I 

 understand, there, who is well acquainted with the northern part of 



