XXX PLANT RESPONSE 



FIU. I'AGE 



29. Response of Metal abolished by the action of ' Poison ' (Oxalic Acid) . 40 



30. Responses of quickly reacting Biophytum, and sluggish Philanthus 



urinaria, under moderate and under stronger Stimulation . . 44 



31. Artificial Hydraulic Response of Mimosa 46 



32. Response of Ordinary Leaf [Artocarpus) 56 



33. Response of Leaves of Ordinary Plants to Electric Stimulation . . 64 



34. Alternate opposite-directioned Responses obtained by the successive 



Unilateral Stimulations of opposite sides of Pistil of Musa . . 68 



35. The Kunchangraph .......... 73 



36. Diagrammatic Representation of Apparatus for Periodic Stimulation 



of Plant 75 



37. Response of Stem of Cuscuta to Electric Stimulation . . . . 77 



38. Photographic Record of Responses of Style of Datura alba to Thermal 



Stimulation .......... 78 



39. Responses of Plagiotropic Stem of Cucurbita . . . 86 



40. Responses of Plagiotropic Stem of Convolvulus .... 86 



41. Response of Bifurcated Allium Tube by sudden Collapse . . . 87 



42. Responses of Hooked Tendril of Passiflora - 90 



43. Response by Coiling of spirally-cut Allium Peduncle . . . . 91 



44. Ineffective Stimulus made Effective by Repetition .... 95 



45. Additive Effect in Electrical Response 95 



46. Mechanical Responses to Stimuli increasing in Arithmetical Progression 96 



47. Curve showing Relation between Stimulus and Response . . . 96 



48. Increased Electrical Response with Increasing Vibrational Stimuli 



. (Cauliflower-stalk) 97 



49. Genesis of Tetanus in Muscle ........ 98 



50. Photographic Record of Genesis of Tetanus in Mechanical Response of 



Plants (Style of Datura alba) 99 



51. Uniform Electrical Responses (Radish) 104 



52. Staircase Effect in Longitudinal Mechanical Response of Plant (Style 



of Euchar is) . . . . . . . . . .104 



53. Fatigue in Longitudinal Mechanical Response of Plant (Style of 



Datura) 105 



54. Fatigue shown in Electrical Response, when sufficient Time is not 



allowed for Full Recovery 105 



55. Alternate Fatigue in Electrical Responses of Petiole of Cauliflower ; 



in Multiple Electric Responses of Peduncle of Biophytum ; in 



Multiple Mechanical Responses of Leaflet of Biophytum; and in 

 Autonomous Responses of Desmo dium . . . . . . 106 



56. Rapid Fatigue under Continuous Stimulation in Muscle, and in 



Leafstalk of Celery 107 



57. Fatigue under long-continued Stimulation in the Contractile Response 



of Plants 108 



58. Photographic Record of Periodic Fatigue under Continuous Stimula- 



tion in Contractile Response (Filament of Uiiclis Lily) . . . 108 



59. Photographic Records of Normal Response of Mimosa to Single 



Stimulus (upper figure), and to Continuous Stimulation (lower 

 figure) 109 



