HYDROGRAPHY. 



island to procure a supply of yams, but it is seldom the case now, as 

 vegetables may be had in plenty at the islands where vessels are 

 obliged to stop and have intercourse. The southern and western end 

 of Niihau lies in latitude 21° 45' north, and longitude 160° 21' west. 

 There is anchorage in the bay, on the northwest side of the island, 

 from one-half to three-cparters of a mile from the shore. Vessels 

 intending to have communication with it, may stand boldly into the 

 bay, until the west point bears southwest-by-west (true), and its 

 north point northeast. The landing abreast of this position is practi- 

 cable, — taking care to pass sufficiently clear of the Islet of Lehua and 

 the rocks which lie off its northwest point, about li miles from the 

 shore. Off the west point there is a reef, which extends upwards of a 

 mile. To the south and west of the south end of Niihau lies the 

 barren rock Kaula. It bears south west-by-west, and is 16 miles dis- 

 tant. It may be closely approached and readily avoided. It lies in 

 latitude 21° 40' north, and longitude 160° 35' west. 



