xiv LIST OF ILLUSTRATIONS 



PART II Black and White. Continued. 



FIG. PAGE 



102. Showing a Node of Ranvier . . . . .192 



103. Showing a Node of Bamboo . . . . .193 



104. Degeneration of Nerve to Node of Ranvier . . . 194 



105. Diagram of Chain of the Sympathetic . . .197 



106. Neurons of the Motor Path (Physiological) . . .199 



107. The same reproduced artificially .... 199 



108. Forms of Spinal Ganglion -Cells .... 200 



109. A Unipolar Cell (Rabbit) . . . . .205 



110. A Bipolar Cell (Fish) . . . . .205 



111. Sketch of Metallic Ball for Electrification . . .206 



112. A Multipolar Cell (Physiological) . . . .208 



113. A Multipolar Cell (Electrical) . . . .208 



114. A Multipolar Cell (Electrical) . . . .209 



115. A Multipolar Cell (Fish) . . . . .211 



116. Reflex Action . . . . . .212 



117. Root Fibres of the Cranial Nerves . . . .214 



118. Plan of the Origin of the Fifth Nerve . . . .215 



119. Pigmented Cells of the Retina .... 221 



120. Section through the Human Eye . . . .224 



121. Section through the Macula Lutea and Fovea . . . 225 



122. Diagrammatic Section of the Human Retina . . . 225 



123. Scheme of the Organ of Hearing .... 229 



124. Square Case Kelvin Reflecting Astatic Galvanometer . . 235 



125. Milled Torsion Head . . . . . .236 



126. A d'Arsonval Galvanometer ..... 238 



127. Galvanometer Scale and Lamp .... 239 



128. Transparent Galvanometer Scale and Stand . . , 240 



129. Paraffin Lamp for use with Galvanometer . . . 240 

 130-131. Diaphragms . . . . . .241 



182-133. Short-Circuit Keys . . . . .241 



184. Electrode . . . . . . .242 



185. Thumb-Piece ...... 243 



186. Method of Connecting ..... 213 



187-138. Electrodes ..... .248-4 



139-140. Diagrams illustrating Ohm's Law .... 248 



141-142. Diagrams of Fall of Potential .... 253 



143. Illustrating Deflection in Lobar Pneumonia . . . 255 



143A-143C. Differences of Level and Potential . . . 256-7 



144-146. Illustrating Earth and Cloud . . .268-9 



