INDEX. 



483 



Nerve, Splanchnic, 99 



,, , Superior laryngeal, 109 

 ,, , Trigeminal, 107 

 ,, , Vagus, 108, 153, 186 

 , Vidiaii, 186 



(See also Nerves, Cranial, Spinal.) 

 Nerve-cells, 89, 157 

 ,, -centres, 101 

 ,, cord, 341 

 ,, -fibres, 90, 274 

 -roots, 97, 184, 202 

 Nerves, 90 



, Cranial, 104, 152, 186 

 , Spinal, 99, 150, 184, 202 

 Nervous system, 89, 150, 184, 202, 



225, 273, 316, 332, 341, 379 

 Neural arch, 66, 273 

 crest, 274 



folds, 233, 252, 264 

 plate, 180, 223, 234 

 spine, 180 

 tube, 234 

 Neurenteric canal, 224, 234, 252 

 Neurilemma, 90, 274 

 Neuroglia, 89 

 Neuropodium, 350 

 Neuroptera, 445 

 Nictitating eyelid, 119 

 Notochord, 58, 159, 180, 200, 224, 



225, 234, 252, 264, 273 

 Notopodium, 350 

 Nucleo-centrosome, 408 

 Nucleoli, 43 

 Nucleus, 39 

 Nutrition Holophytic, 381 



Holozoic, 381 

 of amoeba, 38 

 Amphioxus, 194 

 earthworm, 337 

 hydra, 377 

 mussel, 324 

 rabbit, 9 



OBELIA, 387 

 Odontoblasts, 57 

 Odontoid process, 69 

 CEsophagus, 6, 15, 140, 174, 309, 



329, 339 



Olecranon fossa and process, 73, 74 

 Olfactory capsules, 159, 181 

 lobes, 101, 151, 184 

 sacs, 112, 134, 154 187,275 



Oligochaeta, 440 

 Omosternum, 148 

 Oocyte, 426 

 Ookinete, 426 

 Ootype, 369 

 Opercular fold, 241 

 Optic cup, 276 



lobes, 103, 133, 152, 185 



,, stalk, 275 



,, thalami, 103 



,, tracts, 106, 152 



,, vesicle, 275 

 Orbiculare, 82, 114 

 Orbito-sphenoid, 80, 166 

 Order, 132 



Organic compounds, 8 

 Organs, 11 

 Origin of nerves, 105 

 Orthoptera, 445 

 Ossicles, Auditory, 82, 114, 165, 275 



Gastric, 309 

 Ossification, 55 

 Osteoblasts, 54 

 Osteoclasts, 55 

 Ostia, 312 



Otic capsules, 159, 181 

 Otoliths, 154, 187, 333 

 Ovals, 424 

 Ovary, 122, 155, 188, 193, 333, 343, 



384 (See also Gonad.) 

 Oviducal gland, 188 

 Oviduct, 122, 155, 188, 228, 280, 



320, 333, 344 

 Ovum, 122, 123, 155, 188, 204, 212, 



228, 321, 334, 345, 384 

 Oxy-haemoglobin, 20 



PAEDOGENESIS, 364 

 JT Palaeontology, 282 

 Palate, 16, 77, 81, 165 

 Palatine, 81, 162 

 Palato-pterygoid, 161, 181, 236 

 Palp, 352 



Pancreas, 17, 140, 174, 243, 268 

 Pancreatic juice, 17 

 Papillae, Circumvallate, 112 



,, , Foliate, 112 

 Parachordals, 159 

 Paramecium, 399 

 Paramylum, 408, 411 

 Parapodia, 349 

 Parasphenoid, 162 



