812 



INDEX. 



Networks, capillary, 171. See Capil- 

 laries. 



Neuralgia, division of nerves for, 482. 

 New-born animals, heat of, 253. 

 Ninth cerebral nerve, 565. 

 Nipple, an erectile organ, 194. 



structure of, 785. 

 Nitrogen, in blood, 98. 



influence of in decomposition, 18. 

 in relation to food, 261-63. 

 in respiration, 226. 

 Nitrogenous food, 256. 



in relation to muscular work, 



604. 



to urea, 456. 

 to uric acid, 458. 

 principles, 20. 

 Noise, how produced, 693. 

 Noises in ears, 697 . 

 Nose. See Smell. 



irritation referred to, 487. 

 restoration of, sensitive pheno- 

 mena in, 483. 

 Non-azotized or Non-nitrogenous 



food, 256. 



organic principles, 19. 

 Non- vascular parts, nutrition of, 390. 

 Nuclei, 



description of, 31-3. 



in developing and growing parts, 



387. 



)li 



Nucleoli or nucleus-corpuscles, 32. 

 Nutrition compared with secretion, 



410. 



conditions necessary to, 388. 

 examples of, 381. 

 general nature of, 14, 379. 

 influence of conditions of blood on, 



388. 



of nervous system on, 390, 550. 

 of state of part on, 394. 

 of supply of blood on, 389. 

 of sympathetic nerves on, 577. 

 in paralysed parts, 391. 

 in vascular and non-vascular 



parts, 390. 

 Nutritive food, 255. 

 repetition, 387. 

 reproduction, ib. 

 Nyrnphae, 718. 



Oblique muscles of the eye, action 

 of, 544. 



Ocular cleft, 774. 



spectrum, 660. 



Odoriferous matters in blood, 91. 

 Odour of blood, 66. 

 Odours, 



causes of, 631. 



different kinds of, 635. 



perception of, 631. 



varies in different classes, 635. 



relation to taste, 706. 

 (Esophagus, action of in deglutition, 



273. 



reflex movements of, 502. 

 Oil, absorption of, 378. 

 Oily matter, 19. 



coated with albumen, 361. 

 Oleaginous principles, digestion of, 



293- 

 Olem, 19. 



in bile, 329. 

 Olfactory cells, 633. 

 lobes, functions of, 523. 

 nerve, 632. 



subjective sensations of, 636. 

 Olivary body, 512. 



fasciculus, 513. 

 Ophthalmic ganglion, relation of 



third nerve to, 540. 

 Optic lobes, corpora quadrigemina, 

 homologues of, 522. 

 functions of, 523. 

 nerve, decussation of, 669. 

 fibres of, 477. 

 point of entrance insensible to 



sight, 664. ^ 



thalamus, function of, 523. 

 vesicle, primary, 772. 



secondary, 774. 

 Optical angle, 656. 

 Ora serrata of retina, 639. 

 Oral canal and oral opening, 621. 

 Organic and inorganic bodies, 3. 

 compounds, instability of, 18. 



peculiarities of some, 17. 

 life, its phenomena, I. 

 muscles of, 584. 

 nervous influences regulating, 



578. 



nervous system of, 466, 568. 

 processes, influence of sympathetic 



nerve upon, 575. 

 Organisation, definition of, 3. 

 Organs, plurality of cerebral, 535. 

 Organs of sense, development of, 772. 



