XXX PLANT RESPONSE 



i i.,. PACK 



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



30. Responses of quickly reacting Biophytitni, and sluggish Philanthns 



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 Passijlora ..... 90 



43. Response by Coiling of spirally-cut A Ilium 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 Eucharis) . . . . . . . . . .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 Desmodium . . . . . . 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 io 8 



58. Photographic Record of Periodic Fatigue under Continuous Stimula- 



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



59. Photographic Records of Normal Response of Mimosa to Single 



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

 figure) 109 



