478 



INDEX. 



Movements of the petals, 343 



of the leaves, 344 



ill the animal kingdom, 

 348 



Movements, muscular (Source of), 



452 

 Muscle (Is oxydised in contraction), 



355 



Myriapods (Respiration of the), 233 

 (Nervous system of the), 



366 



N. 



N^EMATOIDS (Nervous system of the), 



364 

 Naemathelminths (Circulation of the), 



194 

 Nerves (Electric currents of the), 



398 

 Nerves (Electro-tonic force of the), 



398 

 Nerves (Regeneration of the), 400 



vasomotory (Their influence 



on nutrition), 150 



Nodus vitalis, 254, 392 

 -Notocord, 286, 328> 

 Nucleus of the cell (Function of the), 



37 



Nutriments, 154 

 Nutrition (Of), 75 

 Nutrition, vegetal, 88 

 animal, 121,140 



(Modifying agents of), 149 



Nutrition, animal (Means of), 154 



0. 



OOGONE, 315 



Oosphores, 315 



Osmosis, 77 



Otoliths, 415 



Ovulum, animal (Constitution of the), 

 313, 323 



Ovulum, vegetal (Its structure), 313 



Ovulum (Evolution of the), 324 



Ovulum, male, 330 



Oxydation of the anatomical ele- 

 ments, 126 



Oxygen (Its province in animal 

 disassiniilation, 139 



r. 



PAIN (Its influence on the tempera- 

 ture), 455 

 Pancreas (Functional relations of the, 



with the spleen), 260 

 Paucreatine, 189 

 Pancreatic (Juice), 189 

 Papillce, gustatory, 410 

 Paraniflecia (Digestion in the), 159 



(sexuality of the), 322 



Parthenogenesis, 311 



Pepsine, 185 



Peptogens, 185 



Peptones, 65, 133, 134 



Plasmas, 51, 55, 58 



Plasmine of the blood, 64 



Planaries (Nervous system of the), 363 



Planaries (Eyes of the), 421 



Plathelminths (Nervous system of 



the), 363 

 Pollen, 319, 331 

 Principles, immediate, 14, 15 

 Processes, ciliary, 425 

 Proliferation, cellular (Modes of), 



276 



Properties, vital, 30 

 Proteiue, 7 



Proteic (Substances), 22 

 Protoplasm, vegetal, 44 



(Intracellular movements 



of the), 91 



Protozoaries (Circulation of the), 193 

 Protozoaries (Respiration of the), 



229 



Psychometer of Dr. Mosso, 436 

 Pupil, 425 



Q. 

 QUATERNARY (bodies), 23 



R. 



RADICALS, compound, 7 

 Regeneration, 334 



(In the inferior ani 



rnals), 320, 334 



Regeneration (Processes of), 335 

 feeble in vegetals, 336 



