578 



SUBJECT INDEX 



Pulleys, 425 



Pulse wave, 366, 556 



Pump, 366 



Pupil of eye, 276 



Purkinje's figures, 295 



Purple of Cassius, 561 



visual, 286 

 Putrefaction and anaerobic action, 494 

 Pyloric sphincter, 418 

 Pyrrol cells, 191 



Quantum of energy as stimulus, 235 

 Quinine, action on ha?moglobin, 318 

 on Liesegang phenomenon, 529 

 Quinine and chemiotaxis, 151 

 Quotient, respiratory, 335 



Radiant energy, 15, 157, 164 

 effect on albumin, 96 

 on colloids, 96 

 on fertilised eggs, 163 

 Radio-activity, 155 et seq. 



of potassium, 159 

 effect on heart, 161 

 Rate of conduction in nerve, 225 



of growth, 468 



factors influencing, 471 

 Rays, a, 158 



astral, 482 



/3, 158 



y, 158 



cathode, 157 



pencil of, 272 



ultra-violet, 164 

 Reaction to indicators, 65 

 Receptors, 233 



phasic, 237 



postural, 240 



pressure, 240 



special, 242 

 Reflection, 273 

 Refraction, 128, 273 

 Refractive index, 78, 273, 278, 302 

 Refractory period of nerve, 227 

 Regulation of respiration, 400 

 Reissner's membrane, 256 

 Reserve air, 345 

 Residual air, 345 

 Resonance, optical, 78 



theory of hearing, 258 

 Respiratory act, modifications of, 402 



centre, 400 



quotient, 335 

 Reticulo-endothelial system, 190, 303 

 Retina, 277, 285 



Reversibility of enzyme action, 123, 494 

 Reversible reactions, 53, 124, 479, 480 

 Rheoscopic frog, 180, 382 

 Rhodopsin, 286, 287, 288 

 Rigidity of tissues. 111, 467 



model to demonstrate, 190, 515 

 Rivers, dissolved matter in and colour of, 



77 

 Rods (and cones), 285, 289 



Roentgen rays, 157 

 Roux's experiment on growth, 490 

 Rubber an emulsion, 104, 177 

 elasticity of, 208 

 imbibition of benzol by, 537 

 Rubner's law of constant energy consump- 

 tion, 477 

 of length of life, 492 



Saccule, 268, 269 

 Sach's rule, 471 

 Saliva, function of, 414 

 "Salting out " of colloids, 93, 535 

 of soaps, 109 

 diffusion of, 85 

 Salts, effect on pK, 68, 69, 431, 510, 529 

 Sanson's images, 279, 281 

 Saponin haemolysis, 318 

 Scala media, 256 

 Schutz's law, 488 

 Sclera, 276 

 Sclerosis, 96 

 Secretion and osmosis, 187 



and permeability, 185 



by renal tubules, 200 



electrical change in, 186 



mechanism of, 187 



mucoid, 548 



of acid, 420 



of alkali, 421 



phases of, 183 



source of energy for, 184 



work done in, 182, 183 



zymogen, 121 

 Secretory hypotheses of respiration, 349, 



352 

 Segmentation of egg, 489 



of intestines, 418 

 Selective action of enzymes, 123 



Ijermeability of membranes, 145 

 Semi-circular ducts, 269 

 Semi-permeable membranes, 40, 136, 511, 



541 

 Sensation, 235 



and stimulus, 235 



of hunger, 246 



olfactory, 244 

 Sense organs, 237, 240, 242, 249, 272 

 Sensitiveness, absolute, 240 

 Shear modulus, 208 

 Shell formation, 545 

 Simpson light, 164 

 Smell, 244 

 Snell's law, 273 

 Soap, 106 



breaking of solutions of, 108 



calcium, 106, 107, 419, 541 



effect of ansesthetics on, 109, 541 



films, 175, 515 



in faeces, 419 



loss of hydrophilic properties of, 109, 541 



potassium, 107, 541 



sodium. 107, 541 



soft, 107 



