16 ILLUSTRATIONS 



TIG. PAGE 



132. Tracing showing action of alcohol on blood-pressure and respira- 



tion 142 



133. Dissection showing vessels and nerves in the neck and upper part 



of the chest in a dog (Color plate) 142 



134. Arrangement of apparatus for recording reaction time for sight . 143 



135. Simple key 145 



136. Electric tuning fork 145 



137. Apparatus for recording reaction time for hearing 146 



138. Box for anesthetizing cats 147 



139. Bell-jar as used for anesthetizing eats 148 



140. Glass or earthen ware jar covered by a glass plate 148 



141. Myocardiograph 149 



142. Cardiometer arranged for use as a myocardiograph 150 



143. Cardiometer made from a large thistle tube 151 



144. Arrangement of apparatus for recording heart tracings .... 152 



145. Special heart holder 153 



146. Heart levers for dogs 154 



147. Schematic representation of the innervation of the heart (Color 



plate) 154 



148. Innervation of heart in the cat 155 



149. MyocardiograpMc and blood-pressure tracings from a dog . . . 156 



150. Fermentation tube 157 



151. Apparatus for recording the pressure of the cerebrospinal fluid . 159 



152. Spleen oncometer for dogs 160 



153. Spleen oncometer for dogs 161 



154. Kidney oncometer 162 



155. Rear view of same oncometer shown in Fig. 154 162 



156. Kidney oncometer made of a metal pill or ointment box .... 163 



157. View showing the oncometer partly open 163 



158. Dissection exposing the kidney from a median incision .... 164 



159. Arrangement of apparatus for making several records simulta- 



neously 165 



160. Appearance of the blood-vessels in the ears of a white rabbit 



(Color plate) 166 



161. Dissection showing position of left pulmonary vessels and sympa- 



thetic trunk in chest above diaphragm (Color plate) .... 166 



162. Dissection to show the abdominal viscera (dog) 167 



163. Electric ophthalmoscope 170 



164. Method used for observing the retinal circulation in a frog . . . 171 



165. Ventral and dorsal views of a pigeon's brain 173 



166. Posterior view of the brain and semicircular canals of a pigeon . 174 



167. Lateral view of head of pigeon showing brain, etc 174 



168. Base of the brain of a dog 175 



169. Upper surface of the skull of a cat 178 



170. Mesial section showing the left half of the interior of a cat 's skull 179 



171. Dorsal surface of the brain of a cat 180 



172. Apparatus for recording and measuring the rate of oxygen con- 



sumption 181 



173. Inner construction of the pans shown in Fig. 172 182 



174. Lateral view of a cross-section of the apparatus shown in Fig. 172 182 



