INDEX. 



337 



Ophionereis lumbriais, i., I'll. 

 'Ophiopholis, food of the Newfoundland 



cod-fish, i., 356. 

 Ophiuiidea, i., 172, 240, 248; ii., 63, 65, 



296. 

 Orange cultivation, San Miguel, ii., 32 ; 



photograph of an orange grove, 37 ; 



plantations destroyed by Coccidse, i., 



318 ; trees near Algesiras, 129. 

 Orbnlhia, i., 122, 18(Vl 98-208, 217. 

 Orbulina univcrsa, from the surface, i., 



205. 

 Orca gladiator, i., 192. 

 Oviedo, discovery of Bermudas, i., 271. 

 Owen, Major, F.L.S., "On the Surface 



Fauna of Mid-ocean," i.,200, 204, 207. 

 Owen, Professor, F.R.S., on Enplectella as- 



pergillum and citcumer, i., 135, 136. 

 Owenia fiUformis, i., 194. 

 Oxygen in sea-water; general conclusions 



from the "Challenger" expedition, ii., 



312. 

 Oxygyrus keraudrenii, i., 125. 



P. 



Pacific Ocean, North, its temperature, i., 



363. 

 Painter's Vale, Bermudas, cave at, i., 286, 



304. 

 Palinuridfe, i., 241. 

 Palma, i., 153. 

 Palm-trees at Mount Langton, Bermudas, 



i., 281,321; at Bahia, ii., 122. 

 Papaw-trees, Bermudas, i., 319, 320. 

 Peat of Falkland Islands, ii., 185. 

 Pelagic foraminifera, ii., 251, 293. 

 Penal servitude at Fernando Noronha, ii., 



103, 105. 

 Penguins on Inaccessible Island, ii., 14G, 



158-161 ; on Nightingale Island, 171. 

 Pentacrinus Maclearanus, ii., 112, 113. 

 Persea gratissima, i., 320. 

 Petrels, i., 192 ; at Tristan d'Acunha, ii., 



156, 288. 

 Philippine Islands, specimens of Enplec- 

 tella from the, i., 137. 

 Phonolite rocks at Fernando Noi'onha, ii., 



107. 

 Phormosoma uramis, i., 146, 147 ; hopla- 



cantha, 148. 

 Phosphorescence of the sea, i., 180, 185 ; 



ii., 79. 

 Phosphorescence of Gorgonoid, i., 122; of 



Umhdlularia Groenlandica, 1 50. 

 Phosphorescent animals, i., 173. 

 Photography on board the " Challenger," 



i., 59 ; Engravings from Photographs : 



Belem Castle, i., 114 ; Cloister of Santa 



Maria, Belem, 117; Bermudas: Group 



of Palms, yEolian Rocks, Land-glaciers, 

 Convolvulus Cave, Calcareous Concre- 

 tions, Cedar Avenue, Swamp vegetation, 

 Papaw-trees, 281, 288, 290, 291, 292, 

 297, 302, 306, 307, 308, 309, 310, 313, 

 315, 319, 322 ; Natives of San Vicente, 

 375 ; A9ores : Garden Trees at San Mi- 

 guel, ii., 31, 33, 35 ; Orange Groves, 37 ; 

 St. Paul's Rocks, 94, 98 ; Breeding-place 

 of the Noddy, 94 ; Tristan d'Acunha : 

 " Edinburgh " Settlement, 140 ; Cyclo- 

 pean Architecture, 143 ; Inaccessible 

 Island water-fall, 148 ; Group of Rock- 

 hoppers, 158 ; Group of Penguins, 171 ; 

 Irrigation, Porto Praya, 231. 



P/u/lica arhorea, at Tristan d'Acunha, ii., 

 i39, 156. 



Phymlia, i., 123. 



Pico, Island of, A9ores, ii., 24, 28. 



Plagmke, ii., 82. 



Plants in the Atlantic, ii., 289. 



Platform Island, Fernando Noronha group, 

 ii., 108. 



" Poison ivy " of Bermudas, i., 305. 



Polycystina, i., 221. 



Polyzoa in the Atlantic, ii., 297. 



Ponta Delgada, San Miguel, ii., 24, 30, 37. 



Porcellaudster ceruleua, i., 352. 



" Porcupine," H.M.S., sounding expedi- 

 tion, i., 21 ; temperature soundings, 226, 

 233. 



Port Louis, Falkland Islands, ii., 180. 



Porto Prayo, Cape Verde Islands, ii., 71, 

 73 ; mode of irrigation, 231. 



"Portuguese men-of-war," i., 123. 



Potato cultivation in Bermudas, i., 318. 



Pourtales, Count, on Glohigcrina and Or- 

 6«/»ia, i., 199, 207 ; on "Deep-sea Cor- 

 als," 250, 253. 



" Pride of India " {Melia azedarach), Ber- 

 mudas, i., 299. 



Protective resemblance in the gulf-weed 

 fauna, ii., 16. 



Protozoa, i., 219. 



Psolus qjMpjpjifir, ii., 191, 192, 193. 



Pteropoda, i., 122, 125. 



Pterotrachea, i., 124. 



Pulvinuliyia, i., 181, 198-209. 



Pumice fragments on the bed of the At- 

 lantic, i., 217, 225; ii., 253. 



Pycnogonida in the Atlantic, ii., 298. 



Pyrocysiis fusiformis, ii., 82, 83. 



Pyrocystis nocliluca, ii., 82. 



Pi/romma, phosphorescence of, i., 180; 

 'ii.,80. 



R. 



Radiolaria, i., 174, 180, 198, 199, 218, 219; 

 ii., 290. 



