208 



INDEX 



Glaucoma scintillans, 144 

 Gonium, 109 

 Graber, V., 47, 100, 104 

 Groom, T. T., 112 



Hammond, J. H. Jr., 68 

 Harper, E. H., 154 

 Heliotropic machine, 68 ff. 

 Heliotropism, 47 ff. 

 Hering, E., 127 

 Hermann, L., 32 

 Hess, C., 102 ff. 

 Holmes, S. J., 51 ff., 73, 116 



Instincts, 156 ff. 

 "Irritability," 39 

 Isoetes, 141, 142 



Jellyfish, 41, 42 



Jennings, H. S., 73, 96 ff., 119, 125, 



143 ff., 155 

 Jordon, H., 18 



Kellogg, V. L., 158 

 Knight, 125 

 Kreidl, A., 124 

 Kupelwieser, H., 104 



Lidforss, B., 142 



Lillie, F., 149 ff., 15,6 



Littorwa, 75 



Lizard, nystagmus in, 126, 129, 130 



Lubbock, J., 47 



Ludloff, K., 43 



Lumbricus, 109 



Lummer-Brodhun photometer, 90 



Lycopodium, 142 



Lyon, E. P., 22, 125, 128, 131 



McEwen, R. S., Ill, 116 ff. 



Mach, E., 33 



Magendie, 27 



Magnus, R., 22 



Marchantia, 142 



Mast, S. O., 73, 99, 108, 109, 119 



Matula, J., 30 



Maxwell, S. S., 33 ff., 106, 108, 126, 



135 



Mayer, A. G., 162 

 Mazda lamp, 86 

 Memory images, 164 ff. 

 Mendelssohn, M., 155 

 Me'nifcre's disease, 17, 110 

 Miessner, B. F., 68 



Moore, A. R., 22, 112, 115, 117 



Morgulis S., 166 



Muscle tension, 20 ff.; after brain 

 lesions in fish, 24 ff., dogs, 27 ff.; 

 under influence of, galvanic cur- 

 rent, 32 ff., one source of light, 

 47 ff., two sources of light, 75 ff., 

 changes in intensity of light, 95 ff. 



Nereis, 135, 150 



Nernst, W., 46, 95 



Nernst lamps, 76 



Neurons, orientation of, 38 ff. 



Northrop, J. H., 75, 89, 90 



Nystagmus, 126, 129, 130 



Oltmanns, F., 117 



Palcemon, 124 

 Palcemonetes, 33 ff., 52, 59 

 Pandorina, 106, 109 

 Paramcecium, 43 ff., 97, 125, 143, 



144, 164 ff., 155 

 Parker, G. H., 54, 75 

 Patten, B. M., 75 ff., 92 

 Pawlow, 165 ff. 

 Payne, F., 118 

 Pfeffer, W., 140 ff. 

 Phacus Triqueter, 109 

 Phrynosoma, 126, 129, 130 

 Pliy corny ces, 105, 117 

 Platyonichus, 124 

 Polygordius, 115 

 Poly orchis penicillata, 41, 42 

 Porthesia chrysorrhoea, 48, 116, 161 

 Proctacanthus, 55 ff. 



Radl, E., 54, 88, 128 

 Ranatra, 52 ff. 

 Reflexes, 21 ff., 166 

 Retina images, 127 ff. 

 Reversal of helitropism, 112 ff. 

 Rheotropism, 131 ff. 

 Robber fly, 55 ff., 72 



Sachs, 101. 



Salamander larvae, galvanotropism 



of, 41 



Schweizer, F., 32 

 Scyllium canicula, 24 

 Serpula, 95 

 Shark, forced movements in, 22, 



24 ff. 

 Sherrington, 22 



