634 Appendices. 



PACHITEA EIYEE. 



Cunu-yacu (Hot-water).— Lat. 9° 5' 62" S. Lon. 74° 48' 15" W. G. Var. 

 8° 69' 26" E. El. 169'". 773. Dist. from Iquitos 825 miles. (At this place 

 are hot springs.) 



Inca Roca (Inca Rock).— Lat. 9° 9' 4" S. Lon. 74° 55' 45" W. G. Var. 

 8° 6' 26" E. El. (no observation). Dist. from Iquitos 837 miles. (At this 

 place there are numerous hieroglyphics cut in the sandstone cliff.) 



Confluence of the Pichis and Palcazu. — Lat. 9° 54' 9" S. Lon. 74° 68' 

 45"W. G. Var. 7° 34' 4" E. El. 188n>.365. Dist. from Iquitos 956 miles. 



PICHIS EIVEE. 



Rochelle Playa.—L&t. 9° 57' 11" S. Lon. 76° 2' 0" W. G. Var. 8° 35' 

 36" E. Dist. from Iquitos 971 miles. (Up to this point, named after Cap- 

 tain J. H. Rochelle, navigation is clear and unobstructed for any steamer 

 which can ascend the Pachite'a ; beyond this point navigation becomes more 

 difficult, though not impracticable.) 



Tempestad Playa.— Lat. 10° 5' 6" S. Lon. 74° 55' 46" W. G. Var. 7° 

 46' 0" E. Dist. from Iquitos 996 miles. 



Mouth of the River Herrera-ydcu. — Lat. 10° 20' 3" S. Lon. 74° 54' 0" 

 W. G. Var. 7° 59' 26" E. Dist. from Iquitos 1030 miles. (This river was 

 named by the Commission after Major Ramon Herre'ra, of the Peruvian 

 army, who commanded the escort of soldiers accompanying the Commis- 

 sion.) 



Puerto Tucker.— Lat. 10° 22' 55" S. Lon. 74° 49' 0" W. G. Var. 9° 7' 

 30" E. El. 213"'.359. Dist. from Iquitos 1041 miles. (This place was 

 named by the Commission after its president, Admiral John R. Tucker; it is 

 the highest point to which the Pichis River is navigable in canoes, and from 

 it lofty mountains are seen, about seven miles distant, extending in a direc- 

 tion east and west.) 



HEEEEEA-YACU EIVER. 



Terminacion Playa.— Lat. 10° 22' 33" S. Lon. 74° 64' 0" W. G. Var. 

 7° 47' 62" E. Dist. from Iquitos 1034 miles. (Termination Playa is the 

 highest point to which the Herrera-yacu is navigable in canoes. Lofiy 

 ranges of mountains are distant from it about twelve miles.) 



PALCAZTJ EIVEE. 



Puerto del Mairo.— Lat. 9° 55' 22" S. Lon. 75° 17' 45" W. G. Var. 7° 

 28' 54" E. El. 242". 315. Dist. from Iquitos 992 miles. 



