1586 



INDEX. 



Proteids, probable molecular composi- 

 tion of, 428 

 ,, possible storage of, in the body, 



796 



"tissue" or morphotic and 

 "floating" or circulating, 

 796, 826 



Proteid material, potential energy of, ex- 

 pressed in calories, 802 

 a constituent of living 



matter, 43 

 the pivot of metabolism, 



828 

 Protoplasm, definition of, 4 



" differentiated," 4 



,, " undiff erentiated " in the 



embryo, 36 



Pseudopodia of the white corpuscles, 38 

 ,, amoeboid movements by 



means of, 166 



Psychical processes, analysis of, 1120, 

 duration of, 1122 



,, ,, visual, complexity 



of, 1295 



Ptomaines, their bacterial origin, 417 

 Ptyalin, a constituent of saliva, 362 

 Puberty, phenomena of, 1547 

 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, 1312 

 Puncture of pleura, result of, 536 

 Pupil, the, see Eye, pupil 

 Purkinje, cells of, their structure, 277 



1022-1025 

 figures of, 1249 

 Purple, visual, 1254 



,, ,, bleaching of by light, 1255 



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 Ferreiu, 638 



of the bulb, decussation of, 

 937, 1046 



Pyrexia, causes of, 817 



Radial artery, tracings of the pulse in, 



257-260 



Kadiation, optic, 991 

 Radicle, lacteal, of intestinal villus, 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, 1212 



Receptaculum chyli, 482 

 Rectum, structure of, 451 



special movements of, 467 



,, nervous control of movements 



of, 467, 468 



Recurrent sensations, 1270 

 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, 94 

 Refractory period of cardiac contraction, 



287 

 Regeneration of nerve tissue, 145 



,, of organs in lower animals, 



1487 



" Registers " of the voice, 1469 

 Reissner, membrane of, 1343, 1349 

 Relaxation of muscular fibre an essential 

 part of contraction, 

 151, 167 



,, ,, a complex vital pro- 

 cess, 313 



