580 



SUBJECT INDEX 



Tissues, strength of, 208 



vegetative, 203 

 Tone, 407 

 Tongue, 414 

 Tonus of muscle, 174 

 Torsion, 205 



balance, 45 

 Touch, 237 



button mechanisms, 419, 464 

 Tractation, 36, 46, 363 

 Training and efficiency, 178, 499 

 Transport of carbon-dioxide, 332 et seq. 



of oxygen, 324 et seq. 

 Trigger action, 222 



energy, 14 

 Trophic and secretory nerves, 186, 187 

 Tropisms, 455 

 Truss, 209 

 Trypsin, 122 

 Turgor, 190, 467, 515 

 Tympanic membrane, 250 

 Tyndall phenomenon, 80, 528 

 Types of colloids, 75 



of emulsions, 104 



of levers, 423 



Ultra-filtration, 84, 137 

 Ultra-microscope, 80, 528 

 Ultra-violet rays, 164, 547, 548 



action of on albumin, 96, 505, 547 

 on organisms, 164, 548 

 on skin, 164, 548 

 Urine, formation of, 194-198 



work done in formation of, 199 

 Utricle, 268 



Valves of heart, 376 



of veins, 375 

 Vapour pressure of a liquid, 37 

 and osmotic pressure, 41 

 Barger's determination of, 514 

 Variability, coefficient of, 472 



index of, 472 

 Vectors, law of, 479 

 Vegetative tissues, 203 

 Velocity of growth, 471 



of passage of electrical disturbance, 225 

 Ventilation of lungs, 351 



of rooms, 450 

 Vibratory energy, receptors for, 236, 249, 



272 

 Viscosity, 88, 530 



coefficient of, 89 



of blood, 320, 550 



of colloidal solutions, 88, 89, 90, 531 



Viscosity, of proteins, 303, 321, 531 



of serum, 301, 321 



of solutions, 88 

 Vision, binocular, 292 



central, 286 



peripheral, 285, 289 

 Visual axis, 283, 290, 292, 293 



field, 295 



judgments, 294 



purple, 286 

 Vital capacity, 345 

 Vitalism, 352 

 Vividiffusion, 88 

 Vocal cords, 405 

 Volition, 12 

 Volume of blood, 325 



corpuscles, 339 — 341, 551 



of erythrocyte, 314 



of heart, 370 



of lungs, 346 

 Vowels, 409, 556 



Walking, 427 



" Waste " heat, 6, 13, 450, 494 



Water as a catalyst, 117 



as a solvent, 61 



dielectric constant of, 60 



dissociation of, 63, 64, 69 



electric conductivity of, 62 



equivalent of calorimetric bomb, 507 

 of human body, 441 



free and bound, 98, 467, 468 



heat conductivity of, 441 



molecular formula of, 62 



smface tension of, 44, 517 

 Work done in formation of urine, 199 

 in secretion, 182, 183 



of heart, 368 



of lungs, 400 



of muscle, 169 — 173 



of phonation, 410 



of pump, 367 



units of, 4 



X-rays, 157 



and crystal structure, 110, 176 



Yeast, 490, 546 

 Yield point, 208 

 Young's modulus, 206 



Zincative, 287 

 Zymogen, 121 



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