INDEX 



431 



Hypertonic and hypotonic solutions, 107, 

 398. 



Illumination, dark background, 74, 409. 

 Imbibition by colloids, 66, 153, 172, 245, 



410, 411. 

 Incus, 204. 



Index of variability, 369. 

 Inertia, 9, 354, 357, 378. 

 Infimdibula, 260. 

 Injury, current of, 134, 143, 145, 190, 



405. 



Integrative action of blood, 206, 231. 

 Interface, 47, 151. 

 Interoceptors, 191. 

 Intrinsic pressure, 47. 

 Ion, definition of, 44. 

 Ionic micelle, 45. 

 Lmisation, 49. 



lonisation constant of water, 56. 

 Ions, electrical charge of, 50 ; hydration 



of, 45, 50, 51 ; relative speed of, 50. 

 Iris, 218. 



Iron content of haemoglobin, 251. 

 Irritability of matter, 131, 193, 319. 

 Isoelectric point, 79. 

 Isomeric compounds, 106, 390. 

 Isometric contraction, 136. 

 Isotonic solutions, 43, 233. 



Joints, 180 ; lubrication of, 179. 

 Joule's heat, 147. 



Karyokinesis, 381. 



Kathode, see cathode. 



Kephalin and blood clotting, 236, 237. 



Kidney, model of, 414 ; structure of, 156, 



161. 

 Kinetic energy, 6, 7, 8, 138 ; of substances 



in solution, 36, 46. 

 Kinetic theory, 37, 75. 



Laccase, artificial, 94. 



Lactic acid, of muscle, origin of, 138. 



Latent heat, 341, 345. 



Latent period of tympanic membrane, 

 202. 



Law, natural, 1. 



Law of Avogadro, 38 ; Boyle, 38 ; 

 Bunscn and Roscoe, 354, 356 ; Charles, 

 38 ; Dalton, 40 ; Gay Lussac, 38 ; 

 Guldberg and Waage, 55, 61, 368; 

 Henry, 247 ; Hess, 293 ; Muller, 183, 

 184, ' 193 ; Newton (cooling), 342 ; 

 (energetics), 37 ; Schiitz, 380 ; Snell, 

 103 ; Talbot, 356 ; von Weimarn, 69. 



Law of autocatalysis, 365 ; catalysis, 

 380 ; cooling, 340 ; corresponding 



states, 69 ; least action, 9 ; length of 



life (Rubiier), 388 ; mass action, 55, 



61, 308; probability, 369. 

 Laws of energetics, 3, 37 ; growth, 374, 



376. 

 Le Chatelier, principle of, 9, 128, 345, 



360, 370. 

 Leduc's diffusion experiment, 382 ; 



osmotic growths, 109, 399. 

 Length of muscle fibre, energy pro- 

 portional to, 136, 142. 

 Lens of eye, 219. 

 Leucocytes, 130, 155, 241. 

 Levers, 202, 207, 308, 315, 320. 

 Liesgang phenomenon, 79, 413. 

 Light, absorption of, by chlorophyll, 14 ; 



by colloids, 70, 72. 

 Light, electromagnetic theory of, 53 ; 



energy of, 14 ; polarised, 70 ; receptor?, 



215, 355. 

 Lippmann's capillary electrometer, 47, 



404. 



Load, influence of, on efficiency, 395. 

 Locomotion, movements of, 320. 

 Lubrication of joints, 179. 

 Lung, mechanism of, 302 ; structure, 260, 



301. 



Lungs, oxygen consumption of, 311. 

 Lymph, 276. 

 Lyotropic series, 78, 409, 411. 



Maintenance of metabolic level, 150. 



Malignant growths and radiation, 126. 



Malleus, 202, 204. 



Malpighian corpuscle, 156, 162. 



Mannitol, 19. 



Mass action, law of, 55, 61, 368. 



Mastication, 314. 



Maximum energy of solar spectrum, 14. 



Mean free path of molecules, 47. 



Measurement of, alkaline reserve of 

 blood, 417 ; electrical conductivity, 

 415 ; electric potential differences, 

 404 ; energy values, 22 ; hydrogen 

 ion concentration, 421 ; lowering of 

 vapour pressure by solutes, 402 ; 

 osmotic pressure, 398, 399, 402 ; 

 surface area of body, 425 : viscosity, 

 409. 



Mechanical equivalents of heat, 3, 4 ; 

 heart (Ostwald), 404. 



Mechanics of, bone formation, 175, 331 ; 

 locomotion, 320 ; mastication, 315 ; 

 respiration, 303 ; speech, 325. 



Mechanism of ear, 211 ; kidney, 163. 



Membrana tympani, 201. 



Membrane, basilar, 209 ; Reissner's, 

 209. 



