INDEX 



Rubber, an emulsion, 84 ; imbibition of 

 benzol by, 410. 



Rubner's law of constant energy con- 

 sumption, 374 ; length of life, 388. 



Sach's rule, 367. 



Saliva, function of, 314. 



" Salting out " of colloids, 79 ; of soaps, 

 83. 



Salts, effect on p H , 61, 62. 



Saponin haemolysis, 244. 



Scala media, tympani vestibuli, 209. 



Scheme of circulation, 281, 423. 



Schutz's law, 380. 



Secretion and osmosis, 151, 153 ; and 

 permeability, 154 ; by renal tubules, 

 163 ; electrical change in, 154 ; 

 mechanism of, 151 ; mucoid, 153, 

 415 ; phases of, 148 ; source of energy 

 for, 150 ; work done in, 154. 



Secretory hypothesis of respiration, 265, 

 267. 



Selective permeability of membranes, 116. 



Semipermeable membranes, 41 ; pre- 

 paration of, .,'.'',s'. 



Sensation and stimulus, 194. 



Sense organs, 192. 



Sensitiveness, absolute, 195. 



Serum, blood, 234. 



Shell formation, 411. 



Simpson light, 126. 



Slyke, van, alkali reserve, 241, 333, 418. 



Smell, sense of, 196. 



Snell's law, 103. 



Soap, 82 ; calcium, 82, 318, 415 ; films, 

 137, 403 ; in faeces, 318 ; loss of 

 hydrophilic properties of, 82, 318, 415 ; 

 potassium, 82, 415 ; sodium, 82, 415 ; 

 soft, 82. 



Soap solution, effect of acids on, 82, 415 ; 

 effect of anaesthetics on, 83 ; prepara- 

 tion of, 403. 



Sodium bicarbonate and C0 2 tension, 

 241, 332. 



Sodium bicarbonate system, 62, 332, 416. 



Sodium soap, 82, 415. 



Sol and gel, 69, 234. 



Solutions normal, 60. 



Solution tension, 163. 



Soma, 135. 



Sounds of the heart, 290, 299. 



Source of energy, for food formation. 17 ; 

 muscular contraction, 140 ; secretion, 

 150. 



Specific action of enzymes, 98. 



Specific inductive capacity, 52, 381 ; 

 irritability, 193 ; nerve energy, 183 ; 

 surface, 66, 93, 381, 384. 



Spectrum, 14. 



Speech, 325. 



Spermatozoon, function of, 380. 



Sphincter muscles, 316. 



Spleen, 164. 



Stabilisation of colloids, 78 ; emulsions, 



85. 



Stapedius, 206. 

 Stapes, 204. 

 Stereoscope, 227. 

 Stereotropism, 358. 

 Stimulus for growth, 315, 376. 

 Stomach, 316. 



Streaming of protoplasm, 131. 

 Stress and strain, 168, 381 ; lines of, in 



bone, 176. 



String galvanometer, 296. 

 Stroma of blood corpuscles, 243. 

 Structure of bone, 175 ; cell, 129 ; ear, 



200, 205, 209 ; erythrocyte, 243 ; 



eye, 218 ; lung, 260. 

 Struts and ties, 169, 170, 171. 

 Submicron, 74. 

 Substrate, 93. 

 Summation of stimuli, 187. 

 Surface area of body and heat loss, 340, 



343. 



Surface area of body and mass, 65, 381. 

 Surface area of body measurement, 425. 

 Surface condensation, 151, 158, 175. 

 Surface energy in cell mechanics, 131 ; 



source of, 46 ; temperature coefficient 



of, 47, 109, 137. 



Surface, extent of, in colloidal suspen- 

 sions, 65, 237. 

 Surface tension, 46-48 ; and electrical 



charge, 47, 153 ; and growth, 375 ; 



and C H , 421 ; effect of solutes on, 



48, 237 ; experiments on, 403, 404 ; 



in muscle processes, 137 ; in nerve, 



183 ; in urine formation, 158, 163. 

 Survival of fittest, 360. 

 Synapse, 182, 185. 

 Syneresis of gels, 235. 

 Synergetical muscles, 323. 

 Synkinetic movement, 202. 

 Synovial fluid, 180 ; sheath, 323. 

 Synthesis by enzymes, 100, 390. 



Taste, 196. 



Temperature coefficient, 47, 370 ; of 

 absorption of gas by a liquid, 247 ; 

 of development, 361, 379 ; of dissocia- 

 tion, 51, 63 ; of growth, 370 ; of 

 muscular contraction, 137 ; of nervous 

 conduction, 185 ; of surface tension, 

 47, 109, 137. 



Temperature regulation, 336, 349. 



