INDEX 



819 



Arginase, 375 



Arrest muscles, 454 



Arrhenius on mathematics in biology, 37 



portrait of, 172 

 Arterioles, automatic tone of, 533 

 Artificial laccase, 66, 585 



membrane, 115 



parthenogenesis, 292 



respiration by Hook, 600 

 Ascaris, metabolism of, 611 

 Ash of proteins, 67 



Asparagine, active, made by heating, 287 



function of, in plants, 287 



Asphyxial stimulation by carbon dioxide, 



699 

 of vaso-constrictor centre, 418 



other than by carbon dioxide, 632 



Association in brain, 482 



neurones, 466 



of solutes, 63 



theory of chemical change, 236 

 Asymmetric carbon atom, 282 



catalysis, 329 

 Asymptote, 35 



Atomic heat at absolute zero, 29 

 Atropine, action of, on permeability, 140 

 Auerbach's plexus, 367, 377, 473, 485 

 Augmentor nerve to heart of toad, 406 



nerves of heart, 684 

 Auricle of tortoise, tone of, 540 

 Auriculo-ventricular node, 679 

 Autacoid, 707 

 Autocatalysis, 314 



in activation of trypsin, 374 

 Auto-fermentation in dead yeast, 19 

 Autolysis, 266, 280, 288 

 Automatic tone of arterioles, 533 



nerve centres, 546 

 Autonomic nervous system, 484 

 Autotomy, 501 

 Autoxidation, 581 

 Auxotonic contraction, 440 

 Avogadro, law of, 85, 148 

 Avogadro's constant, 85 



Axis cylinder as liquid, 396 

 Axone reflex, 473 



in crayfish claw, 425 



in vaso-dilatation, 690 



B 



/3-iminazolylethylamine, 699, 708 



relation of action of, to osmotic pressure 



(Dale), 163 



Balance of chemical excitation and nervous 

 inhibition, 418 



excitation and inhibition in heart, 407 



in periphery, 425 



Balance in reflexes to skeletal muscle, 413, 

 414 



in vasomotor nerves, 408, 420 



in vasomotor reflexes, 412 

 Balloon ascent of Tissandier, 634 

 Barger's vapour pressure method, 155 

 Barium silicate formation, 68 



Basic dyes, 70 

 Basilar membrane, 526 

 Beer's law, 230 



Beetroot experiments on permeability, 125 

 Bence-Jones' protein, 93, 102 

 Benzene, permeability of, 135 

 Beri-beri, 259 



Bernard, Cl., demonstrating an experiment 

 686 



on " irritabilite, " 378 



on physiology of lower organisms, 291 



on pancreatic juice inactive on proteins, 



374 



signature of, 689 



statue of, 689 



Bertrand's theory of enzymes, 325 



Berzelius on catalysis, 301 



Betz cells, 478 



Bicarbonate system, 196, 199 



Bile, secretion of, 345 



Bimolecular reactions, 312 



Biogen theory, 18, 19, 269, 281, 342, 421, 



441, 498, 606 

 "Bios" of yeast, 260 

 Bivalve molluscs, closure of shell in, 405, 



454 



Black on fixed air, 606 

 Bladder, "catch mechanism" in, 537 

 Bleeding of stems, 163 

 Block as inhibition, 402, 425 

 Blood, coagulation of, 702 



corpuscles, aggregation of, by cerium 



salts, 93 

 " dust," 375 



flow and osmotic pressure (Demoor), 164 



hydrogen-ion concentration of, 192, 202 



oxygen consumption by, 613 



pressure advantages of, 667 



measurement of, by Hales, 671 



proteins not food, 107, 288 



viscosity of, 687 



volufne of, 687 



Body fluids, regulation of osmotic pressure 



of, 164, 165 

 Boyle's law, 147 

 Brain, absence of vasomotor nerves from, 



689 



functions of, 477 



Browne, Sir Thos., on sexual reproduction 



292 

 Brownian movement, 84 



in living protoplasm, 19 



Browning on decision, x 

 " Buffers," 203 



