572 



PROTOPLASM 



Hormones, synthesis, 521 



wound healing, 510-511 

 Houslonia, 323 

 Howell, 494 

 Hunger and pH, 326 

 Hurd-Karrer, 451 

 Huygens, 395-396 

 HyaHne substance, 4 

 Hyaloplasm, 4, 266 

 Hydration, 200 



cation, 488 



protein, 487-488 

 Hydrogen, atom, 398-399, 402 



ion, 320 



{See also Acidity) 



isotopes, 424 

 Hydrogen-ion concentration, 295 

 Hydrophilic colloids, 115 

 Hydrophobic colloids, 115 

 Hypertonic, 187 

 Hypotonic, 187 

 Hysteresis, 145 

 Hysteria, 326 



Idioplasm, 9 

 Imbibition, 140, 200 



versus osmosis, 202 

 Immunization, 500 



active, 500 



passive, 500 



theory, 502 

 Immunology, 499-502 

 Individuality, chemical, 499 



protein, 498 

 Indophenol oxidase, 518, 519 

 Infrared, 406 



effect on plants, 405-406 

 Insulin, 509 



Interfacial tensiometer, 161 

 Iodine, 434 

 Ionic doublets, 301 

 Iron, 433 



anemia, 451 



chlorosis, 323 

 Irradiation of sterols, 465 

 Isoelectric point, 122, 375, 486-488 



proteins, 375, 488 



Isoergosterol, 465 

 Isomeres, 454 

 Isosmotic, 187 

 Isotonic, 187 

 Isotopes, 424 



Jacobs, injection versus immersion, 

 279 



molecular versus ionic permea- 

 bility, 284 



pore theory, 282 

 James, 536 

 Jennings, emergent evolution, 536 



surface tension and amoeboid 

 movement, 164 

 Joffe, 384 

 Johnson, 395 

 Joly, 412 

 Jordan, 223, 234 

 Juncus, 33 

 Jungers, 26 



K 



Kant, 535 



Karrer, carotene, 516 



cellulose digestion, 461 



solation by current, 493 



squalene, 467 



vitamin A, 515-516 

 Kaufmann, 22 

 Keilin, 518, 519 

 Keller, 354 

 Kelvin, 43 

 Kepner, 536 

 Kerr, gelation of protoplasm, 493 



microinjection, 64 

 Kiesel, 7 

 Kilpatrick, 301 

 Kinoplasm, 4 

 Kinship, blood, 503 



cataphoresis, 385-389 



molecular weight, 505 

 Kite, 49 



Knop's solution, 437 

 Kogl, 511 



