INDEX. 



Portillo pass, 306, :ill 



Porto Praya, 1 



Potato, wild, "2.1-1 



Potrcro Seco, 335 



Prairies, vegetation of, 112 



Pre'vost, M., on cuckoos, f>0 



Priestley, Dr., oil lightning-tubes. 



56 



Procellaria gigantea, habits of, 277 

 Proctotretus, 91 

 Proteus, blindness of, 49 

 Protococcus nivalis, 309 

 Pteroptochos, two species of, 258 



, species of, 266, 275 



1'uento del Inca, 320, 341 

 Puflinus cinercus, 277 

 1'uflinuria Berardii, 277 

 Puma, habits of, 128, 174, 257 



, flesh of, 110 



Puna, or short respiration, 308 

 Punta Alta, Bahia Blanca, 76 



Gorda, 122, 341 



Pyrophorus luminosus, 29 



Quadrupeds, fossil, 7G, 120, 123, 147, 



164 

 , large, do not require 



luxuriant vegetation, 80 



-, weight of, 81 



Quartz of the Vcntana, 103 



of Tupalguen, 109 



of Falkland Island, 18G 



Quedius, 10 



Quillota, valley of, 243 



Quintero, 242 



Quinquina Island, 290 



Quoy and Gaimard on stinging 



corals, 445 

 on coral reefs, 



457 



Rabbit, wild, at the Falkland Is- 

 lands, 183 



Rain at Coquimbo, 324, 332, 334 



at Rio, 27 



and earthquakes, 336 



in Peru, 349, 350 



in Chile, formerly more abun- 

 dant, 342 



, effects on vegetation, 



^324 



Rana Mascarieusis, 3G7 

 Rat, only aboriginal animal of New 

 Zealand, 410 



Rats at Galapagos, '>>'<> 



at Ascension, 472 



at Keeling Island, 437 



Rattle-snake, species with allied 



habit, 91 

 Red snow, 309 

 Reduvius, 316 

 Reef at Peruaiubuco of sandstone, 



477 

 Reefs of coral, 44G to 462 



, Barrier, 450, 457 



, Fringing, 453 



Reeks, Mr., analysis of salt, 61 



bones, 147 



salt and 



shells, 354 



Remains, human elevated, 355 

 Remedies of the Gauchos, 121 

 Reugger on the horse, 222 

 Reptiles absent in Tierra del Fuego, 



226 



at Galapagos, 86(5 



Respiration difficult in Andes, 308 

 Retrospect, 47 



Revolutions at Buenos Ayres, 132 

 Rhinoceroses live in desert coun- 

 tries, 81 



, frozen, 83, 238 



Rhynchops nigra, 129 

 Richardson, Dr., on mice of North 

 America, 363 



, on polished rocks, 



239 



237 



-, on frozen soil, 83, 



, on eating fat. 111 

 , OH geographical 



distribution, 12: 



Rimsky atoll, 448 



Rio de Janeiro, 18 



Plata, 37 



Negro, 59, 141 



Colorado, 66 



S. Cruz, 168 



Sauce, 100 



Salado, 111 



Rivers, power of, in wearing chan- 

 nels, 171, 308 



River-bed, arched, 344 



River-courses dry in America, 101 



Rocks burnished with ferruginous 

 matter, 12 



Rodents, number of in America. 47, 

 170 



