128 



INDEX 



De Bary, 120. 



Demoor, 41. 



Desmids, localized streaming in, 113. 



Development, influence of streaming on 

 order of, 34. 



De Vries, 3. 



Diosmosis, influence of streaming in, 15. 



Dutrochet, I, 2, 57, 88; action of acids on 

 streaming, 77; of alcohol, 85; of 

 alkalies, 79; of opium, 8 1 ; chloro- 

 plastids as seat of movement, 107 ; in- 

 fluence of changes of temperature, 59, 

 60 ; model of streaming, 96 ; theory of 

 streaming, 109. 



Ectoplasmic membrane, vitality of, 98. 



Egg-albumin, electrical conductivity of, 

 123-6, Figs. 1 6 and 17. 



Electrical currents, influence of direction 

 of, on growth, 99 ; on streaming, 100 ; 

 variations of velocity due to, 100. 



Electrical properties of the cell, 45. 



Electrical stimuli, 88 ; minimal, 91 ; in- 

 fluence of temperature on, 92, 93. 



Electrical theories of streaming, 109. 



Electro-chemical surface-tension theory, 

 115. 



Electrolysis, distribution of, in plants, 99. 



Electrolytic action, in cells, 95 ; in egg- 

 albumin, 123. 



Electro-magnetic streaming, no, Fig. 14, 

 in ; in living cell, 112. 



Elfving, on influence of electrical currents 

 on growth, 99. 



Elodea, absorption of nitric acid by, 85 ; 

 action of acids on streaming in, 78 ; 

 action of alkaloids on, 83, 84 ; of elec- 

 trical currents on, 91; E. canadensis, 

 cardinal temperatures for streaming in, 

 59; change of direction of streaming 

 in, 34 ; detailed action of heat on, 65 ; 

 fragmented streaming cell of, 9, Fig. 

 2; induction of immobility in, 15 ; in- 

 fluence of alkalies on, 80 ; of injury 

 on, 4; of magnetic forces on, 49 ; 

 of oxygen on, 37 ; of photo-synthesis 

 on streaming in, 51 ; maximal tempera- 

 tures for streaming in, 60; minimal 

 oxygen-pressure, 37 ; rate of propaga- 

 tion of stimuli in, 104 ; streaming in 

 amyliferous cells of, 76 ; streaming and 

 osmotic pressure in, 15. 



Emulsion globules, surface-tension in, 113.; 

 movements, 113, 114. 



Energy, expenditure of, in streaming, 26 ; 

 relation of, to work done, 31 ; calcula- 

 tion of, 27; in small cells, 28, 29; 

 - from co- efficient of friction, 30; 

 sources of, 35. 



Engelmann, 117. 



Epistrophic movements, 107. 



Ermann, 115. 



Eserin sulphate, 83. 



Ewart, 2, 36, 39, 42, 43, 57, 67, 70, 76, 98, 

 102, 105, 107. 



Faraday, 48 ; magnetic properties of organic 



products, 46. 

 Farmer, on streaming and photosynthesis 



in Nitella, 39. 



Fibrin, magnetic properties of, 47. 

 Fibrinogen, coagulation point of, 22. 

 Fischer, on cilia of Bacteria, 56. 

 Fontana, i. 

 Fragmentation, influence of, on streaming, 



8, 9, Fig. 9. 

 Frank, 3, 107. 

 Frankel, 4, 78. 

 Friction, in fluids, n. 

 Fungi, streaming in, 53, 54. 



Gamgee, 47, 48. 



Gas-chamber, 60, Fig. 9. 



Gerasimoff, 56. 



Glycerine, influence of, on streaming and 



on viscosity, 86 ; penetration of apical 



cells by, 12, 13. 

 Gravity, influence of, on rotation, 23 ; on 



floating particles, 25, 26. 

 Growth, relation of, to streaming, 55. 

 Gum-arabic, magnetic properties of, 47. 



Haemoglobin, magnetic properties of, 47, 

 48. 



Hanstein, theory of streaming, 108. 



Hassal, 2. 



Hauptfleisch, 3, 56, 70, 81, 87 ; on influence 

 of water on streaming, 13 ; - of 

 temperature, 59 ; on primary and 

 secondary streaming, 75. 



Heat, influence of, on streaming, 36. 



Heat-maximum, influence of duration of 

 exposure on, 6 1 ; of age on, 63. 



Hermann, on negative variation, 101. 



Hertwig, 56. 



Hofer, 55. 



Hofmeister, 56, 69, 1 17 ; influence of changes 

 of temperature on streaming, 66 ; theory 

 of streaming, 108. 



Hermann, 78, 99, 101, 102 ; on movements 

 ofchloroplastids, 106; phenomena of 

 electrical excitation, 89 ; importance 

 of spiral streaming, 34 ; on influence of 

 changes of temperature on streaming, 

 66 ; of sugar solution, 57 ; minimal 

 electrical stimulus, 50. 



Hot-stage, 60, Fig. 9. 



Hydrogen, influence of, on streaming, 39 ; 

 apparatus for obtaining pure, 41, Fig. 6. 



Hydrostatic vibrations, influence of, on 

 streaming, 72 ; transmission of, 73. 



Imbibition theory of streaming, 108. 

 Immotility, induction of, in Elodea, 15. 

 Induction currents, influence of, on stream- 

 ing, 51. 



