828 



INDEX 



Interference of waves, 230 



theory of inhibition, 419 

 Interferometer, 230 



Intermediate compounds in catalysis, 324, 

 326 



in enzyme action, 326 



Ostwald's criterion relating to, 324 

 Internal pressure of liquids, 50, 150 



secretions, 707 

 Interplasmic reactions, 19 

 Interrelation of internal secretions, 721 

 Intestinal worms, antitrypsin of, 317 



metabolism of, 61 1 

 Intracellular digestion, 365 

 Intramolecular oxygen, 342, 441, 446, 606 

 Intravenous injections made by Wren, 342 

 Intra- ventricular pressure, 673 



Intra- vital staining, 10 



in relation to permeability of cell, 12 



Invasion coefficient of Bohr, 629 



Invertase, 312, 314 



Investigation of nerve centres, 482 



" lon-proteids," 213 



Ionic conductivity, 176 



lonisation, 170 



Ions, affinity of, for charge, 214 



as chemical compounds of electrons, 170 



effect of temperature on hydration of, 236 



Faraday's terminology of, 170 



hydration of, 178, 236 



present apart from electric current, 171, 



173, 178 



symbols for, 171 



velocity of, 177 



Iris, local reciprocal innervation in, 498 

 Iron as peroxidase, 585, 589 



compounds in relation to oxygen, 614, 615 



content of haemoglobin, 614 



filings as statoliths, 528 



in cell as catalyst for oxidation, 592 



in chloroplast, 566 



Irreciprocal conduction in nerve centres, 

 475, 491 



in synaptic membrane, 4!)3 



permeability, 141 



Irreversibility of direction in reflexes, 491 



Islets of Langerhans, 721 



Isoelectric point, 104 



Isohydric solutions, 199 



Isometric contraction, 439 



Isothermal process, 32 



Isotonic coefficients, 169 



contraction, 439 



solution, 117 



.Tecorin, 66 



Jelly, 77 



Jiihne's bacillus, growth factors of, 260 



K 



Karyokinesis, 590 

 Keith-Flack node, 679 

 Kidney, nervous supply of, 358 



structure of, 353 

 Kidneys, function of, 353 

 Kin.-esthetic centres, 480 

 Kinetic energy of molecules, 85 



of particles, 85 



theory, 84 



as theory of probabilities, 148 



of liquids, 148 

 Knee-jerk, 475 



Kohlrausch's law of migration of ions. 177 



Laccase, 585 



artificial, 66 



Lactic acid in blood during work, 631 



formation of, in muscle, 441, 442, 444, 



446 

 loss of, in urine, 449 



of muscle, origin of, 449 

 Lambert's law, 35, 550 

 Lanthanum salts not hydrolysed, 92 

 Laplace, internal pressure of, 50 

 Larmor on reactions in stages, 581 



( Latent heat, 227 



period of muscle, 398 



of reflexes, 488 



Lavoisier and his wife, portraits of, 604 

 Lavoisier's experimenton muscular work, 605 

 Law of Avogadro, 85, 148 



of Beer, 230, 551 



of Blagden, 155 



of Boyle, 147 



of Bunsen and Roscoe, 556 



of cooling, 35, 157 



of Dalton, 146 



of Dulong et Pefcit, 226 



of Gay Lussac, 147 



of Grotthus, 548 



of Henry, 619 



of Lambert, 35, 550 



of Maxwell, 180 



of Miiller, a 13 



of parsimony, 66 



of progress (Gaskell), 464 



of Raoult, 155 



of specific energies of nerve, 388 



of the intestine, 367 



of velocities, 157 



of Weber, 513 

 Laws of Arrhenius, 173 



of energetics, 27 



Le Chatelier, principle of, 618 

 Lecithin, 130 



a suspensoid colloid, 134 



