580 



PROTOPLASM 



Regulatory substances, miscella- 

 neous, 520-521 



organizers, 510 



pigments, 516-520 



sulph-hydryl, 520-521 



vitamins, 512-516 

 Reiner, 226 

 Reinke, 7 

 Remington, 277 

 Respiration, 433 



enzymes, 519 



Keilin, 519 



pigment, 518, 519 



role of iron, 433 



Warburg, 518 



Wieland theory, 518, 519 

 Reiicularia, 7 

 Reuss, 358 

 Reversibility, 138 

 Rheology, definition, 209 

 Rhumbler, amoeboid movement and 

 surface tension, 164 



model of Amoeba, 43, 44 

 Rickets, 407, 515 

 Rignano, 532 

 Ringer, 66 



antagonism, 441 



balanced solutions, 438-439 



origin of formula, 71 



solution, 439 

 Robbins, 86 

 Robinson, 423 

 Robyns, 26 

 Rocklin, 408 



Roentgen rays, 392, 397, 399 

 Rona, Hofmeister series, 172 



particle charge, 369 

 Root, 165 

 Rosenhof, von, 1 

 Roux, 67 

 Ruark, 400 

 Rubidium, 427 

 Rubinstein, 443 

 Ruhland, 144 



Runnstrom, structure of mitotic 

 figure, 263 



viscosity of echinoderm eggs, 213, 

 218 



Rutherford, 397 



Ruzicka, aging and dehydration, 

 208, 223 

 hormones, 521 



S 



Sachs, 9 



Salt environment, 436 



formation, internal, 484 

 Salting out, 138, 481 

 Salts, 426 

 Sap, ascent of, 333 



continuity of, 338 



electroendosmotic flow, 356 



pH of, 330 

 Sarcode, 1 

 Satellites, 22 

 Scarth, anisotropy, 264 



elasticity of protoplasm, 232 

 and protoplasmic structure, 234 



micrurgy, 63 



mitochondria, 19 



protoplasm, a jelly, 218 



protoplasmic structure, 266 



trophoplasm, 4 

 Schaede, 329 

 Schalek, non- Newtonian soap, 231 



thixotropy, 150 

 Schistostega osmundacea, 42 

 Schleiden, 30 

 Schmitt, 254 

 Schmucker, 434 

 Schouten, 48 

 Schrodinger, 400 

 Schwann, body fluids, 65 



on cell theory, 30 

 Sclerotium, 7, 217 

 Scurvy, 514 



Sea-water, salt content, 439, 440 

 Secretin, 509 



Selective permeability of mem- 

 branes, 186 

 Sen, 384 

 Series, Hofmeister, 445 



lyotropic, 445 

 Sharp, 10 

 Sheppard, 227 



