LIST OF ILLUSTRATIONS. XV 



P10. PAGK 



190. Heart-tracing, effect of heat and cold. (Stirling.) .... 267 



191. Gaskell's clamp. (Stirling. )........ 268 



192. Tracing of auricles and ventricle. (Stirling. )..... 268 



193. Gotch's arrangement for excised heart. (Stirling.) .... 269 



194. Tracing inhibition of heart. (Stirling.) ...... 272 



195. Latent period of vagus. (Stirling. ) 273 



196. Scheme of frog's vagus. (Stirling.) 274 



197. Vagus curve of frog's heart. (Stirling. ) 275 



198. Scheme of frog's sympathetic. (Gaskett.) 276 



199. Effect of muscarine and atropine on the heart. (Stirling.) . . 278 



200. Support for frog's heart. (Stirling. ) . . . . . . . 278 



201. Staircase heart-tracing ......... 278 



202. Kronecker's frog's heart cannula 280 



203. Heart-tracing during perfusion. (Stirling.) 281 



204. Scheme of Kronecker's manometer. (Stirling.) 282 



205. Scheme of Roy's tonometer. (Stirling.) 283 



206. Tonometer. (Cambridge Scientific Instrument Co.) .... 283 



207. Illuminated ox-heart. (Fredericq after Gad.) 286 



208. Marey's cardiograph 287 



209. Polygraph of Rothe .......... 288 



210. Cardiac impulse tracing. (Knoll.) ....... 289 



211. Rothe's tambour .......... 289 



212. Radial pulse and respirations. (Knoll.) . . . . . 290 



213. Radial pulse and cardiac impulse. (Knoll.) 250 



214. Marey's sphygmograph. (Bramwell.) 292 



215. Sphygmograms. (Marey.) 292 



216. Dudgeon's sphygmograph 293 



217. Sphygmogram. (Dudgeon.) 293 



218. Ludwig's sphygmograph ......... 293 



219. Arm support for 217 ......... 294 



220. Gas-sphygmoscope .......... 295 



221. Marey's scheme of rigid and elastic tubes 298 



222. Rheometer 299 



223. Capillary pressure apparatus (V. Kries.) 301 



224. Lymph-hearts. (Eckcr.) 301 



225. Simple kymograph (made by Verdin.) 302 



226. Nerves in neck of rabbit. (Cyon.) ....... 303 



227. Shielded electrodes as made by Verdin ...... 303 



228. Blood-pressure tracing of dog ........ 304 



229. Blood pressure tracing of dog. (Stirling. ) 305 



230. Francois-Frank's cannula. (Verdin.) 306 



231. Marey's respiration double tambour 308 



232. Stethographic tracing. (Stirling.) 309 



233. Marey's stethograph ( Verdin. ) 309 



234. Stethographic tracing. (Knoll.) 310 



235. Muller's valves. (Stirling.) 312 



236. Hey wood's experiment. (Stirling.) ....... 313 



237. Gases collected over mercury. (Gscheidlen.) 313 



238. Hempel's appara us for expired air 314 



239. Hemp^l's absorption pipette 314 



