INDEX. 



409 



Phosphovescenco of the sea, source of 



the, 326, 327. 

 Phyllirlioe, granular noiTes in the, 328. 

 Physalia, peculiarities of the, 53. 

 Pij^o-fish, the, 203— its nervous system, 



376. iSee Sj'nj^athus. 

 Planariee, the, 107 — the thread capsules 



in, 146, 148. 

 Plants, sensitive tolight, 122 — examples 

 of their soizing insoct-food, 123 — loco- 

 motion in, 124 — relations of light to, 

 232 et sen. — Parthenogenesis among, 

 291. 

 Pleurobranchaea, the, 354. 

 Pleurobranchus, the, 242 — its digestive 

 organs, 243 — the shell rudiment in, 

 247 — the so-called eyes in, 341 — 

 hearing in, 354 — its nervous system, 

 371, 373, 374. 

 Plumatella, the, 204. 

 Plunuilarian Polj'pes, Parthenogenesis 



among, 293. 

 Poets, the, on the sea, 269. 

 Polygastrieaof Ehrenberg,the, 217 note, 

 Polyuoe, blood of the, 67. 

 Polypes, the alleged pai-alysing power 

 of the, 128 — the thread capsules in 

 the, 146, 148 — do they truly digest, 

 214 — digestion in, 218 — peculiar re- 

 l>roduction in, 280 — production of 

 jelly-fish by, 280, 281— Partheno- 

 genesis among, 291 — identity of, and 

 the Medusa, 321 — sensibility mani- 

 fested by, 389. 

 Polypes, the fresh-vsrater, their paralys- 

 ing power disproved, 138- — herma- 

 phrodite, 157. 

 Polypus eudendrium, peculiarities of 

 generation in, 295 — myriophyllum, 

 Parthenogenesis in the, 293, 295. 

 Polyzoa, the, 203 — AUmann on the 

 fluids of the, 260 — MoUuscan nature 

 of, 337. 

 Polyzoon, a new, 337. 

 Pond, a, 72. 

 Pond-mussels and snails, vitality of the, 



340. 

 Post, live animals sent by, 78. 

 Pratt, Mrs, on the stinging power of 



the Anemone, 129. 

 Priestley, discovery of the expiration 



of oxygen by plants, by, 232. 

 Protococcus nivalis, reproduction in the, 



313. 

 Protoplasma, the, 313. 

 Public whipping in Jersey, 271. 

 Pycnogonida;, the, 107. 



QUATREFAGES, M., and the microscope, 



2 



36 — on the Annelids, 111, 112 — name 

 given to Parthenogenesis by, 281 — 

 his views on it, 289, 303 et seq. — on 

 Owen's theory of it, 304 — on gemma- 

 tion, 311 — on the Noctilucie, 320". 



Rapp, his work on the Anemones, 119 



— on the sensibility of the Anemones 

 to light, 122 — on the sex of the Ac- 

 tiniic, 163, 165. 



Ratlikc on the Annelids, 111. 



Razor-fish or Solen, the, 361. 



Reaumur on the Anemones, 1 18 — on the 

 motion of the Anemones, 126 — the 

 experiments of, on digestion, 215. 



Red Nose, the, 82. 



Reproduction as a life-function, 58, 59 

 — by gemmation, on, 61 — system of, 

 in the Anemone, 155 — recognised 

 forms of, 308 — and growth, essential 

 identity of, 313 — procosses of, by divi- 

 sion of colls, ol'i et seq. — by union of 

 two similar cells, 315 — by that of two 

 dissimilar cells, 3 1 6. 



Respiration, twofold, in Annelids, 69 — 

 of the Eolids, investigation into the, 

 101, \06 et seq. — influence of light 

 on, 234 — relations of, to circulation, 

 253 — specialisation of, 391. 



Retina, error as to im;xges being formed 

 on the, 343 — its structui-c, 345 — in- 

 sensible to light, 347 — its position in 

 Invertebrates, 350. 



Ribbon-fish, the, 24, 203. 



Robin on the colour-specs of the LoUgo, 

 96 note. 



Rocks, the, at Ilfracombo, 9. 



Rock-basins, the supposed Druidical 

 222. 



Rondelet on the Anemones, 118. 



Sabell^, the, 66 — blood of the, 67. 



Sagartia, proposed new genus of, 150. 



Sagitta Mariana, difficulties of clas- 

 sifj-ing the, 250 — description of it, 

 251 — its want of a vascular system. 

 253. 



St Heliers, town of, 270, 272. 



St Marv's Isle, one of the ScUlies, 185, 

 188— Sound, 187. 



Salpa, peculiarities of generation in the, 

 286. 



Sars, discoveries of, in Parthenogenesis, 

 287. 



Sarsiaprolifera, reproduction in the,173. 



Saxicava rugosa, the, 82. 



Scepticism, importance of, in Biology. 

 101) — necessity of, in scientific obser- 

 vation, 153. 



M 



