1590 



INDEX. 



Speech, sounds made use of in, 1471 

 Spermatozoa, structure of, 1504 

 ,, formation of, 1505 



,, movements of, 1506 



action of on the ovum, 



1512 



Sphincters of stomach, their action dur- 

 ing digestion, 459 

 ,, tone of dependent on cord, 922 

 Sphincter ani, its nerve- supply, 463 

 ,, vesicae, 681 



iridis, 1162, 1172 

 Sphygmograph, Dudgeon's, 256 

 Spinal cord, see Cord, spinal 

 Spiral cells, 176 

 Spiral tubule of kidney, 641 

 Spirometer, 538 

 Splanchnic nerves, 171 



,, ,, inhibitor and augmentor 



fibres in, 467 

 ganglia, 176 



,, abdominal nerve, 316 



Spleen, the, possible formation of red 



corpuscles in, 38 

 its action during digestion, 436 

 blood-supply to the, 737 

 lymphatic vessels of the, 738 

 hyperplastic spots of the, 738 

 Malpighian corpuscles of the, 738 

 nerves of the, 739 

 movements of the, 740 

 chemical constituents of, 742 

 uric acid in the, 780 

 " Spleen-curve," 740 

 Spleen-pulp, destruction of red corpus- 

 cles in, 36 



,, ,, composition of, 737, 739 

 Spot, blind, of retina, 1248 

 Stagnation stage of inflammation, 338 

 Stapes or stirrup bone, 1320 

 Starch, action of saliva on, 358 



,, chemical composition of, 359 

 ,, action of pancreatic juice on, 426 

 " animal " 722 

 its value in diet, 836 

 Starvation, its effect in checking pro- 

 duction of glycogen, 716, 

 720 



,, changes in body during, 789 

 ,, fall of temperature attending, 



818 

 Stearin, a constituent of animal fat, 772 



,, its presence in blood, 50 

 Stereoscope, ocular movements affected 



by the, 1287 

 ,, principle of construction, 



1301 



Stethometer of Burdon Sanderson, 540 

 Stimuli, defined, 56 



various kinds of, 59 

 necessary characters of, 138 

 Stimulus, reflex actions varied according 



to nature of, 906 

 Stomach, structure of, 380 



Stomach, cardiac glands of, 381 

 pyloric glands of, 384 

 nervous supply to, 402 

 its secretion of gastric juice, 



403, 404 



movements of, 458 

 changes of food in the, 471 

 Stomata of cisterna in frog, 487 



,, in mammals connecting serous 

 cavities with lymphatics, 488 

 Storage of bile in gall-bladder, 435 

 of glycogen in the liver, 717, 725 

 ,, of fat before hibernation, 821 

 Strands, spiral, of cochlea, 1358 

 Stratum granulosum of epidermis, 688 



,, lucidum of epidermis, 689 

 Stria? acusticffi, 959 



Striation, obscurity of in cardiac mus- 

 cular tissue, 288 



Stroma of red corpuscles, its compo- 

 sition, 32 

 ,, ,, embryonic formation of 



from protoplasm, 36 

 ,, of the kidney, 646 

 Stromuhr of Ludwig described, 220 

 Strychnia, reflex action as affected by, 



907, 912 



Submucous tissue, 378 

 Substance, living, compared with dead, 



3,95 



,, ,, metabolic changes in, 42 



,, ,, chemical composition, 43 



Substances, visual, hypothetical, 1233 

 Substantia gelatinosa centralis of cord, 



863 



of Kolando, 863 



nigra in brain, 981 

 Succus entericus, its nature and action, 



430 



,, ,, how probably furnished, 449 



Sugar, its presence in the blood, 51, 727 



normally present in blood and 



chyle, 513 



formed by saliva from starch, 360 

 course taken by, during digestion, 



513, 524 



in diabetic urine, 654 

 its conversion into glycogen, 722 

 a product of metabolic changes, 



723 

 ,, used up by muscle, 824 



its value in diet, 836 

 Sulcus spiralis of cochlea, 1349 



, , crucial and sigmoid, of dog's brain , 



1035 



Sulphur in proteids, 17, 799 

 in urine, 650 

 ,, in keratin, 689 

 Suprarenal bodies, their structure, 765 

 ,, ,, chemical composition, 766 

 ,, their functions, 766 

 Swallowing, mechanism of, 452 



,, its action on tympanic air 



pressure, 1335 



