526 



INDEX. 



Ophiollirix lutteni, 100. 

 Orhitolites teiiuissimusj 91^ 194. 

 Orhulina universa, 23. 



Pecten lioshynn, 465. 



Fedicellaster typicus, 45ti. 



Pentacrinus wmiUe-thomsoni, 186, 443 ; 

 P. asteria, 436 ; P. P. MUllerl, 442. 



Petermann, Dr. , on the Gulf-stream, 287, 

 379, 3c)2. 



Pheronema aniice, 418. 



Phornwsoma placenta, 171, 459. 



Phosphorescence, 98, 148. 



Pierce, Professor, on the Gulf- stream, 

 386. 



Platydia anomioides, 146. 



Pleuronectia luclda, 464, 465. 



Polycystina, 98. 



* Porcupine,' first cruise of the, 82 ; equip- 

 ment of the vessel, 83 ; results of the 

 first dredging, 86 ; first trial of the 

 Miller-Casella thermometers, 88 ; Por- 

 cupine Bank, 88 ; trip to Rockall, 89 ; 

 second cruise, 93 ; dredging at the 

 depth of 2,435 fathoms, 95; return to 

 Belfast, 100 ; third crui5e, 101 ; liolte- 

 nia ground, 104 ; the hempen tangles, 

 105 ; Thorshavn, 106 ; discovery of 

 Arctic stream, 110 ; Shetland plateau, 

 111 ; predominance of the Arctic fauna, 

 131 ; fauna of the warm area off the 

 north coast of Scotland, 177 ; return 

 to Belfast, 178 ; fourth cruise of the 

 ' Porcupine,' 179 ; cruise in the Medi- 

 terranean, 19D ; fauna near the African 

 coast, 192 ; Adventure Bank, 192 ; 

 Malta, 194 ; temperature soundings 

 near Stromboli, 195 ; return to Cowes, 

 196. 



Porocidarispurpurata, 102, 459. 



Pourtales, Count L. P. de, deep-sea dredg- 

 ings across the Gulf-stream off the coast 

 of Florida, 277. 



Pourtalesia jfre.i/si, 103, 457, 459, 489 ; 

 P. pMale, 90, 459. 



Predominance of protozoa, 47. 



Preservation of specimens, 261. 



Pressure, conditions of, at great depr.hs, 

 32 ; methods of testing the actual pres- 

 sure, 34 ; effect of pressure on the 

 thennometer, 294. 



Prestwich, Joseph, P.E.S., President of 

 the Geological Society ; Temperatures 

 of the Atlantic, 358 ; on the continuity 

 of the chalk, 496. 



Pnamviecfdnus vncrotiiberculatuSf 457 ; P. 

 miliar is, 459. 



Psolus squamaius, 125. 



Pieraster inilitaris, 171. 



R. 



Rha^damnuna dbt/ssoj-um, 75. 

 JUiizocrinus Inffotensis, 76, 124, 447, 451. 



Richards, Rear- Admiral, C.B., F.R.S., 

 Hydrographer to the Navy, 3. 



Ross, Sir James Clark, K.N., deep 

 dredgings in the Antarctic Sea, 20 ; 

 temperature observations, 304. 



Ross, Sir John, voyage of discovery in 

 Baffin's Bay, 18 ; machine for taki.ig 

 up soundings from great depths, 209 ; 

 temperature observations during the 

 Arctic voyage, 300. 



RosseUa velata, 419. 



Royal Society, letter to, from Dr. Car- 

 penter, recommending a systematic 

 course of deep-sea dredging, 53 ; letter 

 from the Secretary of, to the Secretary 

 of the Admiralty, 55 ; reply from the 

 Admiralty, 56 : (see also 133-141.) 



S. 



Sabine, General Sir Edward, K.O.B., 



extracts from private journal, 18, 300. 

 Sars, Professor Michael, list of animals of 



all the invertebrate groups living at a 



depth of 300 to 400 fathoms, 33, 268, 



270, 274. 

 ScJdzaster canaliferus, 459. 

 Schmidt, Professor Oscar, on Hexactinel- 



lidie, 70 ; Cometella, 114, 268, 416. 

 Schultze, Professor Max, on Hvalonema, 



425. 

 SerpiUa, 273. 



Sharks at great depths, 34. 

 Shortland, Captain, R.N., temperatm-es 



of deep water in the Arabian Sea, 359. 

 Smith, Toulmin J., on Ventriculites, 482. 

 tiolastev furc'fer, 119, 456; S. papvosuj, 



118. 

 Spatangvs raschi, 118 ; 3. purpureas, 



459. 

 Spirorbis, 273. 

 Spratt, Captain, R.N., dredging in the 



Mediterranean, 270. 

 Steenstrup, Professor, additions to the 



knowledge of marine zoology, 268. 

 Stylocordyla horealis, 114. 

 Surface-temperature, mode of determin- 

 ing the, 287 ; distribution of, in the 



North Atlantic, 362. 



T. 



Tanks for the transportation of living 



fish, 59. 

 Tellina calcarea, 462 ; T. compressa, 464. 

 Temperature of the crust of the earth, 



404. 

 Terel>7'atula septata, 130. 

 T/iecop/iora semisuheriUs, 147 ; T. ililo, 



148. 

 Thecopsammia socialis, 433. 

 Thermometer, Six's, 288 ; Miller-Casella, 



