NO. 2 FRASER : SCIENTIFIC WORK, VELERO III, EASTERN PACIFIC 203 



PLATE 93 



Fig. 196 (A panorama.) An extensive view of the seaward side of Lobos de 

 Afuera Islands, Peru, showing the lighthouse at the extreme left and a 

 cove in which landings may be made in calm weather only. The nest- 

 ing birds are pelicans. 



Fig. 197 (A panorama.) Pelican rookery at Lobos de Afuera Islands, Peru. These 

 are the northernmost of Peru's guano islands and are notable for the 

 total absence of the white-breasted cormorant which occurs so abund- 

 antly on the more southerly islands. Chart 92, p. 413 ; Chart 93, p. 414. 



PLATE 94 



Fig. 198 The landing place at Lobos de Afuera Islands, Peru, a deep and quiet 

 cove in which live the lighthouse keeper and the guardian of the 

 island, representatives of the Peruvian Guano Administration. Chart 

 92 p. 413. 



Fig. 199 The principal rookery at Lobos de Afuera contains about 200,000 of the 

 Peruvian pelican. Most of the adult birds were at sea fishing at the 

 time this picture was taken. Chart 92, p. 413. 



PLATE 95 



Fig. 200 The island of Huaflape, most productive guano island with possible ex- 

 ception of the Chinchas group. Over 3,000,000 guanayes, or cormorants, 

 nest on the slopes of this island. Young guanayes just learning to swim 

 may be seen in the lower right-hand corner. 



Fig. 201 Landing place at Huafiape Island, Peru. The considerable rise and fall 

 of the tide makes necessary the rope ladder and the extensible wooden 

 stairway. A small army of several thousand workers descend upon the 

 island every three years and shovel off the accumulated bird excrement. 



PLATE 96 



Fig. 202 (A panorama.) A portion of a rookery of over 3,000,000 white-breasted 

 cormorants nesting on the island of Huafiape, Peru. Terraces have been 

 built to afford a maximum of level nesting territory. 



Fig. 203 The seaward shore of Mazorca Island is precipitous and rocky. Every 

 available nesting site is occupied by a pair of piqueros, or boobies, but 

 because of the inaccessibility of the nesting sites their guano cannot be 

 reclaimed. 



PLATE 97 



Fig. 204 Mazorca Island, Peru, seen from the deck of the Velero III. Officials 

 of the Guano Administration are about to greet the Expedition and 

 invite its scientists ashore. 



Fig. 205 The Island of Mazorca, basaltic monolith surmounted by a lighthouse 

 and radio station. The buildings in the foreground are occupied by 

 workers of the Peruvian Guano Administration and are reached by 

 means of the hanging ladders. 



PLATE 98 



Fig. 206 The water front at Callao, Peru, showing small fishing vessels which 

 can be propelled either by oar or by sail. Large ocean-going vessels tie 

 up at Callao wharves, some of which may be seen at the left back- 

 ground. 



Fig. 207 The Peruvian coast line south of Callao, marked by sea stacks in 

 various stages of disintegration as represented by the flattened islands 

 at the left, the peninsula in the center, and the outlying rocks, Chart 94, 

 p. 414. 



