INDEX. 



19 



Saccharose, 59. 



Sacculus, of the internal ear, 559. 

 Saliva. 141. 



physical properties and composition of, 



action of, on starch, 143. 



varieties of, 144. 



daily quantity of, 145. 



physiological action of, 146. 



as auxiliary to the sense of taste, 516. 

 Salivary glands, 141. 

 Salts, biliary, 108. 



of the blood, 223. 



of the urine, 329. 

 Saponification. 4. 

 Scala tym pan i. 563. 

 Scaln vestibuli. 563. 

 Schleiiini. canal of, 520. 

 Sclerosis, of posterior columns of spinal 



cord. 



Sclerotic coat, of the eyeball, 519. 520. 

 Sebaceous matter, of the skin, 71. 



in the foetus, 671. 



Second pair of cranial nerves, 449. 

 Secretion, of saliva, 144. 



of gastric juice, 153. 



of pancreatic juice, 170. 



of bile, 180. 



of albuminous matter by the oviducts and 

 Fallopian tubes, 587, 588, 617. 



of calcareous matter by the oviduct, 589. 

 Segmentation, of the vitellus, 617. 



in the fowl's egg. 624. 

 Self-digestion, of stomach, 160. 



of pancreas, 169. 

 Semicircular canals, 559. 



office of, 561. 



effects of injury to, 562. 

 Seminal fluid. 

 Seminiferous ttibes, 594. 

 Sensation. 510. 



of pain. 512. 



of temperature, 512. 



channels for, in spinal nerve roots, 388. 



in spinal cord, 393. 



centres of. in the cerebral hemispheres, 430. 

 Sense, of touch, 510. 



of taste. 513. 



of smell, 517. 



of sight, 519. 



of hearing, 554. 



organs of. development of, 667. 



special, nerves of, 447. 

 Senses, the. 5i<>. 



mode of action of. 513. 

 Sensibility, general. 5lo. 



delicacy of. in different regions, 511. 



tactile, 



of the tongue, 463. 

 Serum, of coagulated blood. 225. 

 Seventeen-year locust. 572. 

 Seventh cranial nerve, 468. 

 Sexes, male and female. 582. 

 Sexual generation. 

 Sexual organs, male, 594. 



femali 



development of. 683. 685. 

 Sheath, tamellated. of nerves. 347. 



tubular, of nerve fibres, 344. 



of Henle, 348, 



of Sen wan n, 344. 

 Shock, nervous, 362. 

 Sight, sense of. 519. 



organ of, 519. 



physiological conditions of. 537. 



influence of trigeminus nerve on, 466. 

 Single vision, with two ey-_- 

 Sinuses, vascular, of the placenta, 657, 658. 

 Sixth cranial nerve. 467. 

 Skeleton, mass and composition of, 38. 



ossification of, 39. 40. 644. 

 Skin, sebaceous matter of. 71. 



watery secretion of. 38, 272. 



development of. 671. 

 Smell, sense of. :>17. 



nerves of. 448. 517. 



necessary conditions of, 518. 



Smell, acuteness of, in animals, 519. 



influence of trigeminus nerve on, 465. 

 Sodium carbonate, 40. 

 Sodium chloride. 41. 



proportion of, in the tissues and fluids, 42. 



in the food, 42. 



usefulness of, 42. 



discharge of, 43. 



in the urine, 330. 

 Sodium glycocholate and taurocho- 



late. 108. 109, 179, 334. 

 Sodium hippiirate, 118. 

 Sodium phosphate, 44. 



biphosphate. 15. 



in the urine. 329. 

 Sodium sulphate. 47. 

 Sodium nrate. 117, 329. 

 Solar plexus, 498. 

 Solidity and projection, appreciation 



of, in binocular vision, 548. 

 Sonorous impressions, persistence of, 



567. 



Sound, sensation of, 554. 

 Sounds, of the heart. 277. 



musical, production and perception of, 567. 

 Special sense, nerves of, 447. 

 Species, definition of, 570. 

 Specific gravity, of saliva, 142. 



of gastric juice, 154. 



of bile, 177. 



of intestinal juice, 190. 



of blood, 212. 



of blof 1 globules. 212. 



of blood plasma, 212. 



of lymph, 318. 



of urine. 

 Spectrum, of hemoglobine, 94. 



of biliverdine, 100. 



of urobiline, 102. 



of chlorophylle, 103. 



of Pettenkofer's test, 111. 

 Six-ri. 



Spermatic flnid. 5*2, 592. 

 Spermatozoa 



movements of. 



formation and discharge of, 594. 



fecundation by. 



entrance of. into egg. 5%, 616. 

 Spheno-palatine ganglion, 475, 497,518. 

 Spheres, vitelliii- 

 Sphincter ani. action of, 409. 



muscles, influence of spinal cord on, 409. 



pupillse, 522. 



vt->i<-;e. 410. 



resistance of, to pressure, 411. 

 Sphygmograpli 

 Spin a befida. t,7n. 

 Spinal accessory nerve. 490. 



branches and distribution of, 491. 



motor properties of, 491. 



Spinal column, development of, 633, 670. 

 Spinal cord. 374. :M 



gray substance of. 374. 



white substance of, 375. 



columns o; 



arrangement of gray and white substance 

 in. 381. 



transverse sections of. 374, 382. 383, 3%, 408. 



connections of. with brain. 385. 



transmission of motor and sensitive im- 

 pulses in. 392. 



sensitive and excitable parts of, 391. 



channels for sensation and motion in, 392. 



crossed action of, 397. 



reflex action of, 401. 



physiological action of. as a nervous centre, 

 406. 



origin of vaso-motor nerves in, 504. 



development of, 667. 

 Spinal nerves, origin of, 374. 384. 



transmission of motor and sensitive im- 

 % pulses in. 365, 366. 387. 



degeneration of, after division, 353. 389. 390. 

 Spiral ganglion, of the cochlear nerve, 565. 

 Spiral lamina, of the cochlea, 563. 

 Spleen, nerves of. 499. 

 Spontaneous generation, 572. 



