INDEX 



719 



Sense of pain, 602 



of sight, 630 



of smell, 609 



of taste, 604 



of temperature, 600 



of touch, 597 



organs, directions for experiments 

 on, 669 



perceptions, 597 

 Senses, the 595 



special, 597 

 Sensorium, 596 

 Sensory areas of brain, 584 



illusions, 596 



impressions, 529 

 Serous membranes, 292 

 Serum, 102 



agglutinative substances, 129 



albumin, 81 



blood, 102, 117 



chemistry of, 139 



composition of, 117 



globulicidal action of, 128 



globulin, 82 



hemolytic action of, 128 



precipitins of, 129 

 Seventh nerve, 554 

 Sharpey's fibers, 45 

 Sight, 630 

 Silicon, 94 

 Sixth nerve, 554 

 Size, estimation of, 668 

 Skein, 19 

 Skin, absorption from, 369 



amount of carbon dioxide ex- 

 haled by, 396 



excretion by, 407 



excretory functions of, 391, 395 



exhalation from, 396 



functions of, 391, 397 



glands of, 393 



loss of heat from, 434 



papillae of, 392 



respiratory functions of, 396 



structure of, 391 

 Sleep, 590 

 Small intestine, digestion in, 345 



mucosa of, 364 



villi of, 364 

 Smell, center for, 585 



sensation of, 670 



Smell, sense of, 609 



Soaps, 91 



Sodium salts in the body, 94 



Solidity, judgment of, 667 



Somesthetic area of brain, 584 



Somnambulism, 591 



Sound, 622 



Sounds, articulate, 488, 490 



localization of, 626 



of the heart, 158 



pitch of, 625 

 Special centers in bulb, 540 



sensations, 596 

 Speech, 480, 490 



action of tongue in, 491 



mouth in, 491 

 Spermatids, 679 

 Spermatocytes, 679 

 Spermatogonia, 679 

 Spermatozoa, 679, 680, 682 

 Spermin, 432 



Spherical aberration, 648, 672 

 Sphygmogram, 206 

 Sphygmograph, 205 

 Sphygmomanometer, 194 

 Sphygmometer, 206 

 Spinal accessory nerve, 1 560 



bulb, 534 



centers, 525, 526 



cord, 510 



antero-lateral ascending tract; 



5i6 



descending tract, 516 

 arrangement of nerve cells in, 



5ii 

 ascending degeneration of, 



5i6 



columns of, 514 

 comma tract of, 516 

 conduction in, 528 

 course of motor impulses in, 



53<> 

 of sensory impulses in, 



529 



crossed pyramidal tract, 515 

 descending degeneration of, 



5*5 

 direct cerebellar tract, 516 



pyramidal tract, 515 

 functions of, 510, 513 

 Gowers' tract, 516 



