LIST OF ILLUSTRATIONS. XUl 



no. PAGB 



90. Simple rheochord. {Stirling.) ....•••• X63 



91. Simple rheochord. {Stirling.) 164 



92. Rheochord, Oxford pattern. {Stirling.) 165 



93. Reverser. {Elliott.) 165 



94. Du Bois Reymond induction coil. {Elliott.) 166 



95. Ewald's sledge coil. {Hurst.) 168 



96. Vertical inductorium • . . . . i6g 



97. Hand-electrodes. {Stirling.) 169 



98. Du Bois electrodes 170 



99. Induction coil for single shocks. {Stirling.) ..... 17X 



100. Du Bois coil 173 



loi. Break exti a-current. {Stirling.) 173 



102. Helmholtz's modification 174 



103. Equalised make and break shocks. {Stirling.) 175 



104. Brodie's rotating key 175 



105. Frog's leg-muscles. {Ecker.) ........ 178 



106. Frog's sciatic nerve. {Ecker.) 178 



107. Nerve-muscle preparation ......... 180 



108. Straw-flag. {Stirling.) . i8i 



109. Scheme for single induction shocks. {Stirlimg.) .... 183 

 no. Scheme of constant current. {Stirling.) 185 



111. Frog's sartor ius and thigh muscles. (Ecker.) 186 



112. Rheonom. {Stirling.) 188 



113. Pohl's commutator. {Elliott.) . • 193 



114. Scheme of curare experiment 194 



115. Revolving cylinder of Ludwig 195 



116. Scheme of moist chamber. {Stirling.) 197 



117. Record of make and break contractions. {Stirling.) .... 199 



118. Muscle curve. {Stirling.) 200 



119. Crank myograph. {Stirling.) , , .201 



120. Arrangement for automatic break. {Stirling.) 202 



121. Simple muscle curve. {Stirlimg.) 204 



122. Isotonic and isometric muscle curves. {Oad.) . . • • . 204 



123. Scheme of Pick's tension recorder. {Schenk.) 205 



124. Apparatus for heat- rigor. {Ludwig.) 206 



125. Pendulum -myograph , . 207 



126. Pendulum -myograph curve. {Stirling.) 208 



127. Spring-myograph 208 



128. Revolving drum for time relations of muscle curve .... 209 



129. Electric signal. {Stirling.) 210 



130. Chronograph. (Cambridge Scientific Instrument Co.) » • .210 



131. Chronograph writing horizontally. {Marey.) 211 



132. Simple myograph. {Marey.) . , . 211 



133. Myograph. {Fredericq.) 212 



134. Effect of temperature on muscle curve. {Stirling.) .... 213 



135. Muscle curve with load. {Stirling.) 214 



136. Veratria curve. {Stirling.) ....•,,. 215 



137. Veratria curve. {Stirling.) 215 



138. Elasticity of a frog's muscle. {Stirling.) ..••,. 217 



139. Elasticity of india-rubber. {Stirling.) .,..,, 217 



