576 



PROTOPLASM 



Muscular action, 334, 457-458 

 Mycetozoa, 40 

 Myelin forms, 467 



threads, 6 

 Myxamoeba, 40 

 Myxomycetes, 2, 40 



N 



Nadson, 408 



Nagaoka, 397 



Nageli, von, colloidal structure, 118 



micellae, 9 



micellar structure, 252 



oligodynamic effect, 428 



osmosis, 182 

 Nakamura, 434 

 Narcosis, 180, 290 

 Narcotics, 290 

 Nathanson, 280 

 Needham, chemical embryology, 510 



microinjection, 64 



oxidation, 346 



protoplasmic pH, 329 

 Negatron, 398, 400 

 Negri bodies, 25 

 Nemec, plasmodesmata, 32 



viscosity and cell division, 220 



viscosity gravity, 212 

 Nepenthes, 78 

 Nephritis and pH, 327 

 Nernst, 339 



Nerve conduction, 335-337 

 Neuromotor apparatus, 39 

 Neutron, 398, 400 

 Newton, bound water, 423 



imbibition by cacti, 206 



light, 39&-396 

 Newtonian liquid, graph, 226 

 Nickel, 427 



Nicotiana, effect of X rays, 410 

 Nitella, 41 

 Nollet, 182 

 Normality, 293 



Northrop, J. H., agglutination of 

 blood, 385 



artificial membranes, 284 



cataphoresis, 361 



Northrop, J. H., critical potential, 

 110, 376 



crystalline enzymes, 361, 508 



lyotropy, 447-448 



molecular weight protein, 477 



permeability models, 45 

 Nolly (see Lecomte du Noiiy) 

 Noyes, 298 

 Nucleic acid, 491 

 Nucleolus, 17 

 Nucleoplasm, 5 

 Nucleus, 17 



cathode, 355 



pH, 330 



properties, 5 

 Nugent, 223 

 Nutritive medium, 72 

 Nuttall, 503-504 



O 



Octadecapeptide, 474 

 Oligodynamic effect, 120, 452 

 Organisms, micellar, 1 



unicellular, 34, 38 

 Organization, 535 

 Organizers, 510 

 Osborne, 513 

 Osmometer, 184 

 Osmoscope, 184 

 Osmosis, 144 



definition, 182 



kinds of, 187, 188 



in hfe, 196 



theory, 188 

 Osmotic pressure, 186 



methods of determining, 189 

 Osmotic systems, constitution, 183 



types, 183 

 Osterhout, artificial cells, 45 



fatty nature protoplasmic sur- 

 face, 280 



permeability, 287 

 Ostreosterol, 464 



Ostwald, electrical properties of 

 membranes, 186 



ions and permeability, 203, 284, 

 285, 349 



I 



