548 



INDEX 



Sitting, 392 



Sixth nerve, 88 



Skatol, 252 



Skill, neuromuscular, 389 



Skin, 312 



absorption by, 323 



diagram of the functions of , 



312 



reflexes, 84 

 Sleep, 421 

 Small intestine, 197 



lymphatics of, 305 

 movements of, 199 

 nerves of, 198, 202 

 Smegma of the prepuce and of the labia 



minora, 321 

 Smell, 361 



apparatus, 361 

 functions of, 103, 361 

 . nerves of, 363 

 Smooth muscle, 377 



contraction of, 486 

 Sneezing, 125 

 Sniffing, 125, 362 

 Sobbing, 125 

 Sodium chloride, 33 



osmosis of, 529 

 Somesthesia, 329, 351 

 Somesthetic areas, 72 

 Sonorous vibrations, 345 

 Sounds of the heart, 291 

 musical, 350 

 physics of, 345 

 vibrations of, 346 

 Souring of milk, 157 

 Space-perception, 345 

 Special muscular functions, 390 

 Speech, 394 



center, 72, 75, 396 

 mechanism of, 86, 394 

 Speed of blood, 282 



of human pulse-wave, 475 

 Spermin, 438 

 Spermatozoa, 440 



movements of, 441 

 Spermatogenesis under erotic influences, 



439 

 Spherical aberration, 524 



mirrors, 520 

 Sphygmogram, brachial, 472 



normal, 473 

 Sphygmograph, 472 

 Sphygmomanometer, 285 

 Spinal accessory, 88, 180 

 animal, 84 

 cord, 79 



columns of, 76, 80 



connection of, with the enceph- 



alon, 75, 76 



direction of fibers in, 80 

 general functions of, 80 

 motor and sensory paths in, 84, 



89 



plan of the nerves of, 79 

 reflex centers in, 85 



Spinal cord, relations of ; to muscular co- 

 ordination, 86 

 vasomotor functions of, 513 



ganglia, 93 



nerve-roots, 510 



nerves, 89 



Spindle in karvokinesis, 46 

 Spleen, 266, 270 



diagram of theories as to the func- 

 tions of, 271 



internal secretion of, 228 



relations of, to blood-corpuscles, 266 



rhythmical contractions of, 271 

 Spontaneous generation, 18 

 Spots, temperature, 365 



touch, 355, 365 

 Standing, 391 

 Stannius' ligature, first, 499 



second, 500 

 Starch, 135, 145, 189 



osmosis of, 529 



Steam engine plant vs. organism, 102 

 Steapsin, 194, 204, 206 

 Stearin, 31 

 Stenosis of the aortic valve, 474 



of the mitral valve, 474 

 Stercobilin, 253 

 Stereognosis, 71 



center of. 71 

 Stethogram. 477 

 Stethograph, 120 

 Sthenic action of joy, 453 

 Stomach, 180 



functions of, 194 



glands of, 181, 187, 196 



movements of, 182 



mucosa of, 182 



regurgitation from, 186 

 Stomata in lymphatics, 275 

 Stream of consciousness, 407 

 Streaming, protoplasmic, 38, 48 

 Strength, muscular, 389 

 Structure of protoplasm, 24 

 Strychnine, action of, 514 

 Subarachnoid space, 62 

 Subconsciousness, 327, 406 

 Sublingual glands, 173 

 Submaxillary gland, 173 

 Succus entericus, 207 

 Suction, auricular, 282 



thoracic, 280 

 Sugars, 30, 146, 190 

 Sulphocyanate in saliva, 174 

 Sulphuretted hydrogen, 30, 252 

 Summation of stimuli, 488 

 Superposition of contractions, 488 

 Suprarenal capsules, 228 

 Swallowing, 180 

 Sweat, 252, 317 



centers, 319 



conditions determining amount of, 

 319 



fibers, 91, 319 



glands, 318 



properties and composition of, 318 



