236 APPENDIX. 



N. 2°W., sixteen miles from Paquiqui, is Point Arena, a low, 

 sandy point, with rocky outline : between the two is a small fishing 

 village, near a remarkable hummock : anchorage may be obtained 

 under Point Arena, in ten fathoms ; fine sandy bottom. 



N. 6° E., twelve miles from Point Arena, is the gully and river 

 of LoA, which forms the boundary hne between Bolivia and Peru. 

 It is the principal river on this part of the coast ; but its waters 

 are extremely bad, in consequence of rimning over a bed of salt- 

 petre, and the hiUs surrounding it containing a quantity of copper 

 ore. It is sedd that the ashes of a volcano faU into it, which 

 add greatly to its unwholesomeness ; but bad as it is, the people 

 residing on its banks have no other. At Chacansi, in the in- 

 terior, where it di\ades, it is tolerably good. In the summer sea- 

 son it is about fifteen feet broad and a foot deep, and runs with 

 considerable strength to within a quarter of a mile of the sea, where. 

 it spreads, and flows over, or filters through the beach ; but does not 

 make even a swatchway, or throw up any banks, ever so small. 

 A chapel on the north bank, half a mile from the sea, is the only 

 remains of a once populous village. People from the interior visit it 

 occasionally for guano, which is in abundance. 



There is good anchorage, but rather exposed to the sea-breeze, 

 with the chapel bearing north, half a mile from the shore, in from, 

 eight to twelve fathoms, muddy bottom ; and landing may be eflFected 

 under Point Chileno ; but the best anchorage near here is the Bay of 

 Chipana, six miles N. 39° W. from the river, and a snug cove for 

 landing, near the extreme of the point ; but at the full and change, 

 a heavy swell sets in, and I doubt a boat being able to land with. 

 goods at those times. 



The best distinguishing mark for the Loa is the gully through 

 which it runs, that may be easily known from its being in the 

 deepest part of the bay, formed by Point Arena on the south and 

 Point Lobo on the north ■; and the liiUs on the south side being nearly 

 leve^ while those on the north are much higher and irregular. 



For the Bay of Chipana — after making the land in the latitude 

 of the Loa, a large white double patch is seen on the side of a hill 

 near the beach, and another similar one, a little to the northward : on 

 discovering these marks (which may be seen three or four leagues), 

 a course should be shaped directly for the southern end, where lies 

 the anchorage in seven fathoms, sand and broken shells, under a low. 



