640 



INDEX. 



The Numbers refer to the Paragraphs. 



43; brain of, 216 ; blood-corpuscles of, 

 574 



Resistance, sense of, 308, 317 

 RESPIRATION, 



General purposes of, 92, 520 ; necessity 

 for, 521; in Plants, 522; in Inverte- 

 brata, 523 ; in lower Vertebrata, 524 ; 

 in warm-blooded Vertebrata, 525 

 Structure and Action of Lungs, 525 532 ; 



development of lungs, 526 ; their struc- 

 ture and properties, 527; movements 

 concerned in exchange of air, 528 

 531 ; capacity of lungs, 532 

 Chemical phenomena, 533 537 ; carbo- 

 nic acid excreted, 533 ; amount of, 534 ; 

 variations in, 535; oxygen absorbed, 

 533 ; azote absorbed and exhaled, 536 ; 

 principles governing, 537 

 Effects on the blood, 538 544; carbonic 

 acid in venous blood, 538541 ; exha- 

 lation of, in hydrogen and azote, 539 ; 

 comparative analysis of arterial and 

 venous blood, 540 ; oxygen in arterial 

 blood, 540 ; extraction of gases from 

 blood, 541 ; cause of change of colour, 

 542 ; aeration by general surface, 543 ; 

 general conclusions, 544 

 To be regarded as an Excretion, 545 

 consequences of retention of carbonic 

 acid, 546548 ; phenomena of As- 

 phyxia, 547; its immediate causes, 548 

 Movements of, dependent on Nervous 

 agency, 183 190; centre of, in me- 

 dulla oblongata, 184: nerves concerned 

 in, 184189 ; independent of will and 

 of consciousness, 186; guard to en- 

 trances to lungs, 187; influence of, on 

 pulse, 515 ; number of, 530 ; share of 

 lungs and air-passages in, 527, 528 ; 

 various influences affecting, 529 531 

 Respiratory circulation, 476 ; peculiarity of, 



517 



Respiratory pulse, 516 

 Rete mucosum, 620 

 Retina, structure of, 322 ; the recipient of 

 visual impressions, 329 ; inversion of pic- 

 tures upon, 336 ; diminution of force ol 

 impressions on, 345; vanishing of images 

 on, 347 ; visual representation of, 348 

 Retractor muscle of orbit, 245 

 Rigor mortis, 389-391 

 Ritchie, Dr., his researches on menstrua- 

 tion, 742 ; on the corpus luteum, 744 

 Robinson, Mr., on effusion of fibrin, 607 



S 



Saccharine principles, 430, 432, 460 



Salamander, 42 



Salivary glands, structure of, 693 ; secre 

 tion of, 694 ; influence of nervous sys 

 tern on, 426 ; incorporation of, with food 

 436 



Sarcolemma, 367374 



?avart, M., his researches upon sound, 362 



scharling, Prof., his researches on respira- 

 tion, 544 



Schleiden, his researches on the develop- 

 ment of cells in Plants, 557 



Schwann,his experiments on muscular con- 

 traction, 394 ; on digestion, 455 ; his ob- 

 servations on Animal structures, 559, 611 



Science, applied to Medical practice, 11 

 , connection of with art, 3 5 



Sciences, connection of the Medical, 112 



Seasons, influence of on Calorification, 729 



Sebaceous glands, 703 



SECRETION, general nature of, 95, 96, 647 ; 

 structures adapted for, 649, 650; essenti- 

 ally composed of cells, 651 ; disorders of, 

 connected with nutritive processes, 718 ; 

 not dependent on nervous agency, 96, 

 424; influence of nervous system on, 235, 

 236, 424429. 



Secretions, amount of, 647 ; sources of, 648; 

 elements of, preexisting in the blood, 649 ; 

 some used in the system, 95 ; see Bile, 

 Urine, Milk, &c. 



Selecting power, of lacteals, 462 



Semicircular canals, 359 



Seminal secretion, 700, 734; influenced by 

 state of feeling, 426 n 



SENSATION, 180, 302 ; why associated with 

 reflex actions, 181, 182; dependent on 

 capillary circulation, 118, 303 ; the guide 

 of consensual movements, 257 



Sensations, nature of, 289, 302; different 

 kinds of, 308, 309 ; pain or pleasure con- 

 nected with, 305; influence of habit on, 

 305 307; special, 308; common, 309; 

 subjective and objective, 310; transfer- 

 ence of, 311 influence of attention on, 

 313315; peculiarities of, 318; know- 

 ledge gained Irom, 308, 317 



Sense, muscular, 397 



Sensibility in different parts, 303, 304, 316 ; 

 of muscles, 399 



Sensory nerves, 115, 124, 302; terminations 

 of, 115 



tract of Sir C. Bell, 115, 169; con- 



nections of, 170, 172 



Serous membranes, 639 



Serum, of blood, composition of, 586: pro- 

 portion of, to clot, 585; milky, 580, 714, 

 note 



Seventh pair, portio mollis of, 223; portio 

 dura of, 227 



Sexual instinct, 736, 738 ; its supposed loca- 

 tion in the cerebellum, 274 278 



Siege of Landau, 768 



Sight, sense of, see Vision 



Single vision with two eyes, 253,337 340 



Size, mode of estimating, 342 



Skin, structure of, 640, 641 ; absorbing 

 power of, 464466, 468; respiratory 

 power of, 543; exhaling apparatus in, 

 701; transpiration from, 702 ; sebaceous 



