1046 



INDEX. 



Pulse, effects of respiration on the, 559 

 respiratory, in the veins near the chest, 388 

 varieties of, 433 

 venous, 407 



Pulse-rate, influence of variations in body-tem- 

 perature on the, 579 

 relation of frequency of respirations and 



the, 534 



Pulse-trace, arterial, 434 

 Pulse-volume, average, of the human ventricle^ 



398 



denned, 397 

 force exerted upon the ventricles, during 



each systole, 399 



measuring the, methods of, 397, 398 

 of the heart, variation in, 397 

 Pulse-wave, dicrotic, 435 



transmission of, rate of, 432 

 Pupil, changes in size of, method of observing, 



768 



contraction and dilatation of, 769-771 

 effects of drugs upon the, 771 

 reflex action of, to light, 769-772 

 Purkinje's phenomenon, 787, 788 

 Putrefaction, 945 

 proteid, intestinal, 248, 249 

 products of, 1021 

 Putrescin, 986 

 "Pyramid of light," 810 

 Pyridin, 1012 

 Pyrocatechin, 1011 



RACE, influence of, upon body-growth, 926 

 Races, brain-weight of different, 722 



skin odors of, 851 

 Radiation, coefficient of, 596 

 Reaction, biuret, of urea, 992 



of a nerve, effect of making and breaking in- 

 duction shocks on the, 49 



of blood, 332 



of efferent nerve-impulses, 660 



of muscle in rigor, cause of, 964 



of muscles and nerves to electric currents, 57 



of nerve-fibre, chemical, 151 



of saliva, 221, 224 



of sweat, 199, 281 



of the efferent impulses of central system, 660 



of urine, 273, 274, 280 



produced by application of cold to the body. 



603 

 Reactions of enzymes, 218, 219 



of intestinal secretion, 247 



of nervous system, involuntary, 651-667 

 voluntary, 667-682 



proteid, 1016 

 Rectum, absorption by the, 255 



muscles of the, function of, 324 

 Rectum and colon, nerve-supply of, 323 

 Reflex action of light upon the pupil, 769-772 

 of deglutition, nerves concerned in the, 314 

 of muscle and nerve, 41 

 of normal salivary flow during mastication, 



171 

 of the central nervous system, 657-667 



contractions of uterus during labor, 919, 920 



excitation of vaso-motor nerves, 492 



movements of muscle and nerve, 41 



of spinal cord, in lower vertebrates, 703-705 

 Reflex and voluntary actions, difference between, 



667 

 Regeneration of blood after hemorrhage, 361 



of nerve-fibres, 58, 82, 636 



pathological, 933 



physiological, 933 

 Relief, perception of, 800 

 Rennin, 218, 233, 234 



extracts, method of obtaining, 234 



Rennin-zymogen, 234 

 Reproduction, 877-942 

 asexual, 878 

 by conjugation, 879 

 defined, 18, 20 

 desire and power of, periods in animals of the, 



898, 899 



double function of, 28 

 organs of, female, 882, 887-901 



male, 882-887 

 periods of, seasonal, 899 

 process of, 901-923 

 sexual, 879 

 theories of, 880, 881 

 Resemblances, congenital, hereditary, 932 



variations in, 938 

 Resonators, 829 

 Respiration, 503-574 

 appearance of the larynx in, 869 

 artificial, 553 



laboratory method of, 553, 554, 561 

 average rate in man, 533 

 centre of, expiratory, 565 

 inspiratory, 565 

 in the fetus, condition of, 572 

 location of the, 563 

 rhythmic activity of, 566 



discharges from the, causation, 567 

 centres, 563-567 

 subsidiary, 565 

 "Cheyne-Stokes," 532 

 cutaneous, 530 



quantity of C0 2 exhaled, 530 

 influence of, internal or tissue-, 530 

 on heat-dissipation, 595 

 on heat-production, 590 

 movements of, 503-516 

 centre of the, location of, 563, 564 

 effects of the gaseous composition of the blood 



on the, 548 

 on blood-pressure, 555 

 on the circulation, 555 

 on the pulse, 555 

 frequency of, 533 



increase in depth of, in COa-dyspncea, 551 

 influence of rate and depth of the volume 



of gases expired on, 538 

 instrumental recording of, 531 

 nervous mechanism of, 563 

 of the new-born, 573 

 relative periods in, variations in the, 532 

 rhythm of, 531 



periodical alterations in, 532, 533 

 sequence of, rhythmic, causation, 566 

 special, 561 



coughing, 562 

 crying, 562 

 gargling, 563 

 hawking, 562 

 hiccough, 563 

 laughing, 562 

 sneezing. 562 

 snoring, 563 

 sobbing, 562 

 yawning, 562 

 object of, 517, 530 

 of various gases, effect of, 548 

 organs of, 503 

 rate of, 518 



conditions affecting the, 533, 534 

 age, 533 



atmospheric pressure, 534 

 composition of inspired air, 534 

 diurnal changes, 533 

 emotions and will-power, 534 

 posture, 533 

 respiratory centres and nerves, 534 



