IXUEX. 



IO2I 



Pigments of the skin 535. 



Pilomotor muscles 529. 



Pilomotor nerves 529. 



Pithecanthropus 1005. 



Placenta 975. 



Placental murmur 184. 



Placenta! villi 977. 



Plane of fixation 867. 



Plant digestion 345. 



Plant ferments 345. 



Plant -lice, development 942. 



Plants and animals 25. 



Plasma 65. 



Plasma-fibrin 72. 



Plasmolysis 37. 



Plessimeter 218. 



Plethysmograph in measuring blood 



pressure 165. 

 Plethysmography 189. 

 Pluricordoiial cells 725. 

 Pneumatic cabinet 151, 253. 

 Pneumatograph 208. 

 Pneumatography 208. 

 Pneumometry 205, 223. 

 Pneumoplethysmograph 209. 

 Pneumothorax 204. 

 Poikilocytes- 50. 

 Poikilothermous animals 381. 

 Point of intersection for visual rays 



830. 

 Poiseuille's hematodynamometer 162. 



space 178. 

 Polar action of the constant current 



665. 



Polar bodies 948, 960. 

 Polarization, galvanic 643. 

 Polarization test for sugars 268. 

 Polyarthrodial muscles 586. 

 Polycythemia 85. 

 Polyemia 84. 

 Polyopia, monocular 841. 

 Polyspermism 958, 960. 

 Pons 804. 



Pontal flexure 968. 

 Pore canals 946, 958. 

 Portal system, development of 992. 

 Portio intermedia of Wrisberg 694. 

 Posterior roots 717. 

 Potatoes 428. 

 Potential energy 20. 

 Power-sense 9,^). 

 Premortal respiratory pause 211. 

 Pressor fibers in the cord 740. 

 Pressor nerves 764. 

 Pressure balance 928. 



phosphenes 845. 



points 924, 927. 



pulse 138, 189. 



sense 927. 



stream 183. 

 Primary albumoscs 297. 



colors 858. 



position of the eyes. 

 Primitive aortas 971. 

 cells 961. 

 kidneys 995. 



Primitive mouth 962, 973. 



segments 969. 



speech 619. 



streak 963. 



vertebrae 969. 

 Principle of least perceptible differences 



928. 



Prochorion 963. 

 Projection system of the brain 742, 743, 



744- 



Pronucleus 959. 

 Propepsin 293. 

 Propeptone 297. 

 Prosencephalon 968, 1000. 

 Prostatic vesicle 997. 

 Protagon 627. 

 Protalbumose 627. 

 Proteid absorption 356. 



diet 442. 

 Proteids 457. 



animal 458. 

 vegetable 459. 

 Proteinuria 494. 

 Psalterium 344. 

 Pseudo-antagonists 587. 

 Pseudo-hermaphrodism 999. 

 Pseudomotor action 559, 695. 

 Pseudoscope 876. 

 Psychic brain functions 774. 

 Psycho-acoustic center 787, 799. 

 Psycho-algic center 800. 

 Psycho-esthetic center 800. 

 Psycho-geusic center 788, 900. 

 Psycho-inhibitory centers 785, 790. 

 Psycho-motor centers 781, 792, inhi- 

 bition of them 794. 

 Psycho-optic center 786, 798. 

 Psycho-osmic center 788, 800. 

 Psycho-sensory centers 785, 798. 

 Psychrometer 230. 

 Ptyalin 263, demonstration 265. 

 Ptyalinogen 265. 

 Ptosis 682. 

 Puberty 951. 

 Pulsatory acceleration of the blood 



stream 159. 



phenomena 'in various struc- 

 tures 156. 



pressure variations 167. 

 vibration of the body 157. 

 Pulse, alternating 145. 



bigeminate 145. 



caprizans 143. 



contracted 146. 



deficient 145. 



dicrotic 145. 



different 140. 



feeble 145. 



filiform 146. 



frequent 143. 



full and empty 145. 



hard and soft 145. 



infrequent 146. 



insensible 146. 



intereurrent 145. 



intermittent 145. 



