INDEX. 



641 



The Numbers refer to the Paragraphs. 



and ceruminous glands in, 703 ; exuda- 

 tion from, increased by heat, 731 

 Sleep, 295, 296 



Smell, sense of, 324, 325; seat of, 220, 324 ; 

 conditions of, 324; acuteness of, in some 

 animals and men, 325; modifications of, 

 325 



Sneezing, act of, 206 



Somnambulism, 296 



Sound, laws of propagation of, 353 355 ; 

 successive pulses of, 362 ; mode of esti- 

 mating direction, distance, and intensity 

 of, 363 ; rapidity of perception of, com- 

 pared with that of light, 364 



Sounds of heart, 484486 



Spasmodic diseases, 298 301 



Spencer, Earl, on the duration of gestation 

 in Cattle, 755 



Spermatic fluid, 700, 734 



Spermatozoa, 734 ; function of, 733 ; deve- 

 lopment of, 735 



Sphinx ligustri, nervous system of, 143, 148 



Spinal accessory nerve, 239, 240 



Spinal Cord, of Vertebrata, 157, 161, 164 

 168; its comparative anatomy, 164; it 

 divisions, 165; its connections, 166; 

 functions of several parts of, 167; gene- 

 ral functions of, 173183, 294: absence 

 of proper sensibility in, 174 182; pro- 

 tecting agency of, 204 206; maintenance 

 of contractility through, 208 ; influence of, 

 on heart, 209; power of sustaining loco- 

 motive actions, 210; influence of, on or- 

 ganic functions, 421, 422 



Spinal nerves, double roots of, 162 



Spleen, structure of, 708; functions of, 709 



Sponges, 13, 19 



Staminal principles, Dr. Prout's division of 

 450 



Stammering, causes of, 418; treatment of 

 419 



Star-fish, structure of, 20; nervous system 

 of, 129 



Stearine, composition and properties of 

 618 



Stereoscope, 252, 340 

 Stomach, presence of, characteristic of Ani 

 rnals, 14, 430 ; general characters of, 435 

 state of, in health, 438 ; in disease, 439 

 sense of hunger referred to, 440 ; move 

 ments of, 444, 445; influenced by nerves 

 200; secretions of, 449, 704; influence o 

 nerves on, 440, 441 ; effects of blows on 

 386, 425 



Stomato-gastric system, 135, 150 

 Strabismus, 253 

 Strangury, 300 



Strings, vibrating, laws of, 405 



Strumous diathesis, 619; see Tubercle 



Subjective sensations, 310, 315 



Suction, 197 



Sulphur, contained in food, 434; in protein 



compounds, 458; oxidation of, in system 



677 



uperfoetation, 756 

 uppuration, 601, 608, 609 

 Supra-renal capsules, 710 



Symmetry, radiate, 20; bilateral, 27 



absence of, in Mollusca, 24 



Sympathetic system, 136, 137, 151, 156, 159, 

 160; influence of, on movements of in- 

 testinal canal, 200, 201 ; on ureter and 

 muscular coat of bladder, 202; on uterus 

 and Fallopian tubes, 203; on heart and 

 vessels, 209, 423; onductuscholedochus, 

 209; on processes of organic life, 421 

 425 



Sympathies, motor, 421,422; organic, 425 

 429, 717 



Syncope, 210, 386 



Taliacotian operation, 313 



Taste, sense of, 308, 321 323; nerves con- 

 cerned in, 228 ; conditions of, 321 ; partly 

 dependent on smeii, 322; educability of, 

 623; purposes of, 322 



Teeth, of Mammalia, 59,60; development 

 of, in Human infant, 635; in lower ani- 

 mals, 636 ; structure of, 633, 634 ; a test 

 of age, 635, k, I, m 



Temperature, sense of, 308, 310; extremes 

 of, sustainable by Man, 721, 722; see 

 Heat 



Tenesmus, 300 



Tetanus, 212, 298, 299 



Testis, structure of, 697, 698 ; development 

 of, 699 



Tessier's experiments on duration of gesta- 

 tion, 755 



Thackrah, Mr., his observations on coagu- 

 lation of blood, 585 



Thaumatrope, 344 



Therapeutics, connection of with Pathology, 

 10 



Third pair of cranial nerves, 244, 249 



ventricle of Brain, 214 



Thirst, sense of, 439 



Thorax, movements of, in respiration, 328 

 531 



Thymus gland, 711, 712 



Thyroid gland, 713 



Tone, of Muscular System, dependent on 

 Spinal cord, 207 



Tonicity, of arteries, 505 



Touch, sense of, 308, 316320; varying 

 acuteness of, in different parts, 316 ; ideas 

 derived from, 317; peculiarities of, 318; 

 improvability of, 319 ; modifications of, 

 in different animals, 320; connection of, 

 with vision, 335, 336 



Toynbee, Mr., his researches on non-vascu- 

 lar tissues, 479, 625627 



Trifacial nerve, see Fifth Pair 



Tubercula Quadrigemina, see CdrporaQua- 

 drigemina 



