822 



INDEX 



Cones, movements of, 519 



relation of, to acuteness of vision, 521 

 Configuration of surface of enzymes, 327 

 Congo-red, osmotic pressure of, 160 

 Conservation of energy, 27 

 Constellations of stimuli, 490 

 Contact potential, elimination of, 192 

 Continuous phase, 75 



Contractile mechanism, stages in, 448 



process distinct from excitation, 398 



nature of, 441, 448 



tissues, 436 



vacuole, 162 



Contractility and double refraction, 438 

 " Control " of enzyme by substrate, 314 

 Coiu-oluta Roscoffemis, 295 

 Cook, Captain, on scurvy, 259 

 Copper, action of, in minute traces, 222 



ferrocyanide cell, 147 

 membrane, 112 



in haemocyanin as catalyst, 618 

 Coronary arteries, vasomotor supply of, 690 



circulation, 680 



Corpora lutea, internal secretion of, 714, 718 

 Cortex of suprarenals, 713 

 Cortical points, stimulation of, 480 

 Coupled reaction, 30 



in relation to muscle process, 446 



reactions in oxidation, 580, 581 



in photo-chemistry, 554 

 Course of excitation in heart, 680 

 Cranial autonomic nerves, 484 



Crayfish claw, mechanism of, 404, 425, 427, 



436, 497 

 Creatine and creatinine as products of wear 



and tear, 267, 272, 543 



chemical nature of, 270 

 Critical illumination, 9 



solution temperature, 155 



Crystals of ammonium hydrogen malate, 283 



Curare, 399 



Curvature of surface, effect of, 51, 618, 619 



Curves, drawing of, 40 



Cyanide, action of, on muscle process, 448 



effect of, on oxidation, 591 



Cyclops, action of ultra-violet light on, 569 

 C3'sts, nature of, 241 



Dal ton's law, 146 

 Damping of galvanometer, 638 

 of string galvanometer, 638 

 Danysz's phenomenon, 68 

 Dark ground illumination, 82 

 Dead space of Liebreich, 54 

 Deamination, place of, 264, 265, 266 

 Decerebrate frog, 481 



Decerebrate preparation, 502 



rigidity, 417, 497, 540 



metabolism in, 541 

 Decrement in nerve impulse, 384 

 Deep sensibility, 515 

 Degeneration of electrical organ, 659 



of nerves, 469, 474 

 Degenerations in organ of Corti, 526 

 Degree of dissociation, determination of, 177 

 Degrees of freedom, 617 



Dehydration of protoplasm (Altmann), 17 

 Demarcation current, 651 



currents in apple, 660 

 Denaturation of protein, 106 

 Density of charge on ion, effect of, 96 

 Dependent variable, 36 



Depressor constituent of "secretin," 708 



inhibition balancing asphyxial excitation, 



418 



nerve, 692 



electrical change in, 386 



reflexes, 697 

 Dermatoptic function, 520 

 Descartes, " De 1'Homme," 494 



"Geometric," 38 



on reciprocal innervation, 494 



on relation of soul and body, 495 



portrait of, 38 

 Desensitisation, 730 

 Destruction of enzyme, 313 



Detection of electrolyte impurity in colloids, 



77 ( 



Development of photographs, 556, 576 



of suprarenals, 711 

 Deviation of complement, 107 

 Diabetes mellitus, 277, 720 

 Dialysis, 83 



Diazo-acetic ester, 195 

 Dielectric constant, 180 



in relation to adsorption, 58 



to electrolytic dissociation, 181 



constants of liquids, 181, 182 

 Differential coefficient of logarithm, 35 



staining of particles of different size, 13 

 Diffraction, 7, 79 



images of Abbe's plate, 8 

 of diatom, 7 



Diffusion, 157 



in colloidal reactions, 68 



of colloids, 162 



rate of (Graham), 157 . 



temperature coefficient of, 42 



through parchment paper, rate of, 83 

 Digestion, 365 



Digestive juices, secretion of, 371 

 Digitoxin inactive without calcium, 215 

 Dilute solution defined, 148 

 Dilution law of Ostwald, 181, 186 

 Dimensions of colloidal particles, estimation 



of, 82 

 Dioptric system of eye, 519 



