448 



INDEX. 



I'rotfids, probable molecular composition 



of, 428 

 ,, possible storage of, in the body, 



796 



,, " tissue " or morphotic and 

 "tlnating" or circulating, 

 796, 826 



Proteid material, j>otential energy of, ex- 



I'lrssed in calories,802 



,, ,, a constituent of living 



matter, 43 

 ,, the pivot of metabolism, 



828 

 Protoplasm, definition of, 4 



,, " differentiated," 4 



,, " undifferentiated " in the 



embryo, 36 



Pseudopodia of the white corpuscles, 38 

 ,, amoeboid ^noveinents by 



means of, 166 



Psychical processes, analysis of, 1120 

 ,, ,, duration of, 1122 



,, ,, visual, complexity 



of, iv. 157 



Ptomaines, their bacterial origin, 417 

 Ptyalin, a constituent of saliva, 362 

 Puberty, phenomena of, iv. 409 

 Pulse, the, 201 



methods of recording, 255 

 curves, 256 



from artificial model, 257 

 ,, characters of, 260 

 wave, changes undergone by, along 



the arteries, 261 

 ., velocity of, 262 

 ,, length of, 263 

 dicrotism in the, 264 

 venous, 271 

 ,, respiratory, 272, 613 

 Pulvinar, the, 978 



, , ending of part of the optic tract 



in, 1075 



Punctum lachrymale, iv. 174 

 Puncture of pleura, result of, 536 

 Pupil, the. see Eye, pupil. 

 Purkinje, cells of, their structure, 277 



10221025 

 ,, figures of, iv. Ill 

 Purple, visual, iv. 116 



,, bleaching of by Iight,iv.ll7 



Pus corpuscles, their formation, 45 

 Putamen, the, 974 

 Pyloric glands of stomach, 384 

 Pylorus, ejection of chyme through the, 



472 

 Pyramid cells of cortex, large and small, 



1026, 1029, 1032 

 Pyramidal tract of cord, 873 



its connection with cere- 

 bral cortex, 888 

 ,, efferent nature of impulses 



of, 1044, 1056 



,, not indispensable for vol- 

 untary movements, 1059 



Pyramids (in kidney) of Malpighi, 635 

 ., of Ferreii), 638 



,, of the bulb, decussation of, 

 937, 1046 



Pyrexia, causes of, 817 



Radial artery, tracings of the pulse in, 



257260 



Radiation, optic, 991 

 Radical, lacteal, of intestinal villas, 447, 



484 



,, ,, contents of, 518 



Ranke's diet table, 802 

 Ranvier, node of, in nerve-fibre, 115 



,, division of nerve-fibre 



takes place at, 119 

 Reaction-period, subdivision of, 1120 



for vision, iv. 74 



Receptaculum chyli, 482 

 Rectum, structure of, 451 



special movements of, 467 



,, nervous control of movements 



of, 467, 468 



Recurrent sensations, iv. 132 

 Reflex actions, general features of, 179 

 doubtful if carried out by 



ganglia, 179 

 not always proportioned to 



stimulus, 180 

 ,, often purposive in nature. 



181, 905 



,, ,, vaso-motor, 321 

 ,, ,, of the cord, 904 

 ,, ,, ,, features of dependent on 

 afferent impulses, 905 

 ,, ,, nervous mechanisms of, 



908 



" crossed," 908 

 ,, ,, their relations to intelli- 

 gence, 909 



,, coordination of, 910 

 ,, relations of to conscious- 

 ness, 911 



,, determined by intrinsic 



condition of cord, 912 



,, ,, ,, other than movements, 



914 



,, inhibition of, 915 

 ,, ,, inhibitory action of the 



brain on, 916 



,, ,, ,, time required for, 918 

 Refraction of muscular-fibre bands, 24 

 Refractory period of cardiac contraction, 



287 

 Regeneration of nerve tissue, 145 



of organs in lower animals, 



iv. 349 



" Registers " of the voice, iv. 330 

 Reissner, membrane of, iv. 205, 211 

 Relaxation of muscular fibre an essential 

 part of contraction, 

 151, 167 



,, ,, a complex vital pro- 

 cess, 313 



