SUBJECTS 



755 



Isoelectric point: 



Amphoteric colloids, signifi- 

 cance of isoelectric point 

 for purification (Loeb) 



237 



Light: 



(Garrey) 101 



Plants, green, action of radium 



on, in absence of (Packard) 



37 

 — , — , action of radium on, in 



presence of (Packard) 



Sensitization to heat due to 

 exposure to light of short 

 wave-lengths (Bo vie and 

 Klein) 331 



Loligo : 



pealii, central nervous system, 

 selective action of nicotine 

 on (Moore) 505 



Lucif erase : 



Cypridina, chemical nature 

 (Harvey) 269 



Lucif erin : 



Cypridina, chemical nature 

 (Harvey) 269 



Lutear cell: 

 See Cell. 



M 



Marble : 



Etching, by roots in absence 

 of bacteria (Fred and Haas) 



631 



— , by roots in presence of 



bacteria (Fred and Haas) 



631 



Matter : 



Living, chemical elements 

 (Hackh) 429 



Membrane : 



Collodion, rate of diffusion of 

 water through, influence of 

 electrolytes (Loeb) 



717 



Metabolism : 



Calcium (Uhlenhuth) 315 

 Metamorphosis : 



Amphibian (Uhlenhuth) 



— , retarding influence of 

 thymus (Uhlenhuth) 

 •^ 305 



— , specific action of iodine in 

 accelerating (Swingle) 



593 

 Thyroid, relation to growth 

 and (Uhlenhuth) 473 



Methylene blue: 



Reduction, by milk, rate 

 (Harvey) 415 



Microorganism : 



Growth of higher plants in 

 soils free of (Fred) 



623 



Milk: 



Methylene blue reduced by, 

 relation to oxygen concen- 

 tration (Harvey) 415 

 Morphology: 



Polarity, morphological, in re- 

 generation, physiological 

 basis (Loeb) 337, 687 



Muscle : 



Tonus, of insects (Garrey) 



101 



Mya : 



arenaria, dark adaptation 



(Hecht) 545 



— , latent period in photic 

 response, effect of tempera- 

 ture (Hecht) 667 



— , sensory equihbrium 



(Hecht) 545 



N 



Nephrectomy : 



Edema produced by (Swingle) 



509 



Nereis : 



Egg, temperature coefficient of 

 action of |8-rays (Redfield 

 and Bright) 255 



