LIST OF ILLUSTRATIONS xiii 



PART II Black and White. Continued. 



FIG. PAGE 



56. Diagram of Pregnant Human Womb .... 124 



57. Ovule of a Gymnosperm . ..... 124 



58. Epithelium Cells (Human) . . . . V . 124 



59. Peripheral Protoplasm of the Embryo Sac of Plant . . 124 



60. Endothelium of a Serous Membrane (Human) . . . 125 



61. Cells from a Tendril of a Plant . , ,\ . . 125 



62. Section across a Nerve Bundle (Dog) . . . . 125 



63. Section through a Young Internode of Plant . . .125 



64. Capillary Vessels of the Air Cells of Lung (Horse) . . 126 



65. Laticiferous Vessels from Root of a Plant . . . 126 



66. Injected Blood-Vessels of Muscle (Human) . . . 127 



67. United Latex Vessels of Plant . . . . . c 127 



68. Stomata in Different Stages of Opening and Closing . . 129 



69. Cells from the Leaf of a Plant ..... 134 



70. Cells from a Staminal Hair of a Plant .... 134 



71. Electrical Diagram of Voluntary Muscular Fibre . .147 



72. Physiological Diagram of Voluntary Muscular Fibre . . 148 



73. Electrical Diagram of Voluntary Muscular Fibre . . 148 

 74-76. Illustrating Expansion and Contraction of Muscle . . 149 



77. Diagrammatic . ...... 150 



78. Connection of Nerve with Muscle . . . .150 



79. Connection of Nerve with Muscle . . . .151 



80. Connection of Nerve with Muscle . . . .151 



81. Sarcomere in Moderate Extension . . . .151 



82. Sarcomere in Contracted Condition .... 152 



83. Portion of Leg Muscle of Insect .... 153 



84. Muscle Curve . . . . . . .160 



85. Section of Sciatic Nerve of Cat .... 162 



86. Section of Screened Cable ..... 163 



87. Termination of Nerve-Fibre in Tendon .... 165 



88. Plexus of Auerbach . . . . . .167 



89. Illustrating Molecular Theory of Electricity . . .169 



90. Synaptic Connections of a Sympathetic Cell . . .170 

 91-91A. A Synapse (Diagrammatic) . . .- . 170-171 

 92. A Synapse (Diagrammatic) . . . . . 171 

 93-94. Illustrating the Parallelogram of Forces . , . 176 

 95. Muscular Fibre Cell (Small Intestine) - . .184 

 96-99. Illustrating Contraction of Same (Diagrammatic) . .186 



100. Muscle Cells of Intestine . . . . 187 



101. Anterior Horn Cell with Processes . . . .190 



