INDEX 



889 



Phosphorescence, oxidation in, 244 

 Phosphoric acid, estimation of, 422 

 Phrenic nerves, 212 



action current of, 635 

 nuclei, connections of, 212 

 Pia mater, 669 

 Pigmented epithelium of retina, 782, 813, 



8iS 



and visual purple, 817 

 Pilocarpine, action of, on digestive secre- 

 tions, 347 

 on pupil, 793 

 on salivary secretion, 378 

 Pilo-motor nerves, 157 

 Pineal body, 729 

 Pitch, 263 



appreciation of, 844, 846 

 Pithing a frog, 168 

 Pilot's tubes, in 

 Pituitary body, 729 



internal secretion ot, 489 

 Placenta, formation of, 871 



glycogen in, 449 



Plants and animals compared, 19 

 Plasma, blood-, 45 

 Plasmine of Denis, 38 

 Plethysmograph, 116, 183 

 Pneumonia after section of vagi, 220, 278 

 Poikilothermal animals, 491 

 Poiseuille's space, 107 

 Polar bodies, 866 

 Polarimeter, 433 

 Polarization of light, 558 



of muscle and nerve, 638-643 



positive, 638 

 Poliomyelitis, anterior, degeneration in, 



686 



knee-jerk in, 707 



Pons, 678, 679, 687, 689, 691, 727 

 Posture, influence of, on blood-pressure, 



164, 187 



on pulse rate, 147, 184 

 Posterior corpora quadrigeminaand audi- 

 tory nerve, 750 

 Posterior horn, cells of, 674 



roots, degeneration after section of, 



606, 607, 680 

 loss of movement after section 



of, 754 

 Postero - external and postero - median 



columns, 676, 680 

 Potential, 533 

 Predicrotic wave, 93 

 Presbyopia, 799 



Pressor and depressor nerves, 162 

 Pressure, arterial, 98-105 

 endocardiac 81 88 

 intra-thoracio, 198, 209 

 negative, in heart, 82, 88 

 respiratory, 2iq 

 secretory, of saliva, 334 

 sensations, 850, 851 

 Primary colours, 823 



position of eyes, 834 

 Projection of image into space, 804 

 Pronucleus, 867 

 Proteids, absorption of, 372 

 composition of, 17. 460 

 living and dead, 437 



Proteids, reactions of, 20, 22 



in urine, 395, 428 



Proteid-sparing action of oiher food sub- 

 stances, 462, 465 

 Proteoses, tests for, 378 

 Protoplasm, 17, 18 

 Pseudopodia, 29 

 Pseudo-reflexes, 708 

 Ptyalin, 297 



Pulmonary catheter, 241 

 Pulse, the, 88-98 



anacrotic, 94 



characters of, 96 



dicrotic wave of, 92 



frequency of, 95 



influence of posture on, 96, 147 



venous, 119 

 Pulse-tracings, 91, 182 

 PuLe-tracings from different arteries, 94, 

 183 



effect of amyl nitrite on, 93, 183 



muscular exercise on, 94, 183 

 Pu'se-wave, velocity of, 97 

 Pulvinar, 718 

 Pupil, Argyll-Robertson, 791 



changes in, during accommodation, 

 788, 789 



constrictor nerves of, 790 



dilator nerves of, 791, 792, 861 



eccentricity of, 795 



influence of drugs on, 793 

 light on, 790 



photography of, 790 

 Purkinje's cells in cerebellum, 728, 729 



figure, 810, 863 

 Purkinje-Sanson images, 775, 786, 787, 



857 



Pus cells, origin of, 57 

 Pyloric sphincter, 288 

 Pyramidal cells, 662-664 



giant, 686 

 Pyramidal tracts, 676, 687. 701 



connections of, 685, 757 

 Pyramids, 676, 678, 679 



decussation of, 686, 687, 701 



Reaction of degeneration, 600 



of intestine, 353, 354 



time, 760 

 Recurrent fibres, 607 



sensibility, 699 

 Red nucleus, 689 

 Reduced eye, 784 

 Referred pain, 699 

 Reflection of light, 774 

 Reflex action, 704, 763 



anatomical basis of, 709 



centres in cord, 706, 707 



time, 711, 768 

 Reflexes, 706, 707 



inhibition of, 705, 768 



from sympathetic ganglia, 710 



spinal, relation of brain to, 705 

 Refraction of light, 775, 776 



in eye, 782 

 Refractive index, 775 



of media ot eye, 783 

 Refractory period of heart, 132 

 Regeneration of nerve, 607 



