INDEX 



163 



Light, influence of, on plants, 32; 



on regeneration of polyps, 33 

 Loeb, J., 29, 69 



Maci'ocytes, 124 



Microcytes, 124 



Mneme (memory hypothesis), 49 



Monochromatic light, 54 



Mysis sp., 47 



Nervous impulses, 39 

 Nitrogen-compounds in sea-water, 



145, 154 



Nitrogen-fixing bacteria, 143 

 Nitrogen-hunger, 145 

 Nitrogen-problem, 142 

 Noctiluca, coloured cells of, 101 



Otocyst, 9 



Palmella, 128 



Photosynthesis by green plants, 



78; by C. roscoffensis, 87 

 Phototropism of Copepods, 69 

 Prawns, 45 

 Protoplast (cell), 79 

 Pseudomonas radicicola, 143 

 Pyrenoid, 85 



Reflex action, 43 



Eeflex arcs, 40 



Eeproduction, periodicity of, in 



brown sea-weeds, 34 

 Rhizobium leguminosarum ( = 



Pseudomonas radicicola), 143 

 Roscoffensis zone, 17 



Salamandra atra, 29 

 S. maculosa, 29 

 Saprophytism, origin of, 157 

 Schimper, A. F. W., 114 

 Secretion, 135 

 Semon, B., 48 



Simultaneous stimulation, 54 

 Starch, 87 



Starling, E. H., 134 

 Starvation, 94 

 Symbiosis, 106, 143, 153 



Tactic response to stimulation, 



41 

 Tonic effect of light-stimulation, 



58, 67 

 Tropistic response to stimulation, 



41, 69 



Unconscious memory, 49 

 Uric acid, absorption of, by C. 

 paradoxa, 149 



Vacuoles (digestive), 11 

 Von Graff, 149 

 Vochting, H., 33 



Williams, J. L., 34 



Yellow-brown cells of animals, 

 82, 100 ; of C. paradoxa, 75, 84, 

 91, 95, 147 



Zoobothrium sp., 100 

 Zoochlorella, 101, 105 

 Zooxanthella, 101 



CAMBRIDGE : PRINTED BY JOHN CLAY, M.A. AT THE UNIVERSITY PRESS 



