1048 



INDEX. 



Secretion, pancreatic, action of nerves on, 173 



amylolytic, 243, 244 

 analysis of, 173, 239 

 characters of the, 238 

 enzyme and zymogen of, 176 

 enzymes of, 173 

 normal mechanism of, 176 

 properties of, 238 

 putrefaction of, 239 

 reflex excitation of, by stimuli, 177 

 specific gravity of, 239 

 pyloric, composition of, 179 

 relation of the strength of stimulation to the 



composition of, 164 



salivary, antiparalytic or antilytic, 171 

 composition of, 161 

 normal mechanism of, 171 

 paralytic, 170 

 sebaceous, 197, 282 

 composition of, 282 

 of the skin, 198 



of uropygal glands of birds, function of, 198 

 physiological value of, 282 

 urinary, amount of, 191 

 conditions influencing the, 197 

 nitrogenous elements of the, of birds, 192 

 of water and salts, 193, 194 

 theoretical considerations, 191-195 

 Secretion and absorption, phenomena, 27 

 Secretions, animal, properties of, 27 



therapeutic value of, 210 

 formation of, 154 

 gland, composition of, 153, 154 

 internal, 205-211 



adrenal bodies, 210 

 liver, 205 

 pancreas, 206 

 pituitary body, 211 

 testis, 211 

 thyroid, 207 

 organs of, 152 



of the gastric mucous membrane, 226-228 

 of the liver, 205 



of the male accessory sexual organs, 885 

 of the thyroids, 207-210, 901 

 salivary, action of drugs on the, 170 



method of obtaining, 162 

 Segmentation of the ovum, 907, 908 

 Selenide, methyl, 978 

 Semen, the, 884 

 amount ejected, 884 

 composition of, chemical, 804 

 derivation of, 884 



ejaculation of, in copulation, 902, 903 

 Semicircular canals, function of, 846, 848 



structure of, 816 

 Seminal vesicles, 885, 886 

 Senescence, 928 



Sensation, auditory, theory of, 824 

 color, phenomena of, 779 

 co-ordinated movements of, 83, 84 

 muscular, 834, 844 

 of light, retinal, 777 



qualitative modifications, 778 

 retinal, latent period in, 789 

 of white, 787 

 persistence of, 791 

 rise to maximum of, 789 

 touch. See Touch-sensation. 

 Sensations, common, 843 

 cutaneous and muscular, 694, 834-846 

 of consciousness of surrounding objects, 826, 



painful, localization of, 842 

 temperature, of the skin, 840-842 

 Sense of equilibrium, 846 

 of hearing, 807-833 



Sense of pain, 842 



of posture, 843 



of smell, 849 



of taste, 851 



of temperature, 840 



of touch, 836-840 



of vision, 696, 697, 744-806 

 Sense-organs. See End-organs or End-bulbs. 



functional independence of, 845 

 Senses, special, 744-854 

 Sensibility, cutaneous, 674 

 Serum. See Blood-serum. 



muscle, 148-150 

 Serum-albumin, 349, 350 

 Sex, characters of, primary and secondary, 881 



determination of, Hofacker-Sadler law, 922 



influence of, on heat-dissipation, 592 



of the embryo, determination of, 821-923 



origin of, 880 



Sexes, body-growth in both, relative rapidity of, 

 926 



stature and weight of botii, after birth, 925 

 Sight. See Vision. 

 Silica, 963 

 Silicon, 962 



dioxide, 963 



"Sinuses" of Valsalva, 403 

 Skatol, 260, 280, 1013 

 " Skiascopy," 765 

 Skin, cold and warm points of, 841 



excretions of the, 281, 282 



functions of the, 281 



greasing the, effect of, 593 



nerve-fibres in the, 281, 835 



pressure-points of the, 839 



pressure-sensibility of the, discriminating 

 differences of, tests, 836, 837 



respiration of. See Respiration. 



secretions of, 197-204 



sensations of the, classification of, 834 



sense-perception of the, differences in, 841 



sensitiveness of the, to temperature, 840 



"tactile areas" of the, 838, 839 



temperature of the, of various points of the 

 body, 576 



temperature-sense of, 840 



touch-sensation of the, 836 

 Skin-tenderness, topographical association of, 



with visceral diseases, 844 

 Sleep, 739-742 



body-metabolism during, 300 



body-temperature during, 578 



cause of, 740 



conditions favoring, 739, 740 



loss of, 742 



Smegma prseputii, 198 

 Smell, sense of, 696, 849-851 

 Sneezing, 562 

 Snoring, 563 

 Sobbing, 562 

 Sodium, 965-967 



carbonates, 966 



chloride, 965 



phosphates, 966 



sulphate, 966 



Sodium-ammonium phosphate, 967 

 Solutions, carbon-monoxide haemoglobin, prepa- 

 ration of, 342 



maintaining the heart-beat, 477-481 



oxyhsemoglobiu, conversion of, into haemo- 

 globin solutions, 341 

 " Somacules," 25 



Sound, relation between physical and physi- 

 ological, 825-834. See Tone. 

 Sound-perception, functions of different parts 



of the ear to, relative, 832 

 judgment of direction and distance by, 833 



