xviii LIST OF ILLUSTRATIONS. 



FIG. PAGE 



191. Work-diagram (Fick) . . . ... .357 



192. Isotonic curve drawn by a double semi-membranosus preparation 



(Fick) '.'.'. . . . . . .358 



193. Series of isotonic curves with increasing loads (Fick) . . . . 359 

 193A. Work-diagram for the same muscle (Fick) .... 359 



194. Isotonic and isometric curve of the same muscle, represented as spring- 



ing from the same base line (Fick) ..... 362 



195. Blix's apparatus for recording isometric and isotonic curves synchron- 



ically. . .. . . . . . . . 365 



195A. Enlarged view of the same apparatus to show the torsion rod from 



above ......... 365 



196. Series of " after-loading " curves with increasing load (v. Kries) . . 367 



197. v. Kries's apparatus for taking " after-loading " curves and " arrested- 



contraction " curves ....... 367 



198. Series of "arrested- contraction" curves (v. Kries) . . . 368. 



199. Isotonic curve and arrest curve of the same muscle, as in Fig. 200, 



cooled to 6 C. (Schenck) . . . . . .369 



200. Isotonic curve and arrest curve of a muscle, warmed to 31 0< 5 C. (Schenck) 369 



201. Isometric and isotonic curves of the same muscle (Schenck) . . 370 



202. Schenck's apparatus for taking "jerk curves" . 370 



203. Isotonic and jerk curves (Schenck) . . . . . 371 



204. Curves of isotonic and arrested contractions of an unloaded muscle 



(Kaiser) ......... 373 



205. (1) Isotonic curve of unloaded muscle, at temperature 14 C. ; (2) the 



same, at 25 C. ; (3) at C. ; (4) at 14 C., with load on muscle 



(Kaiser) . . ... . . . 373 



206. Isotonic curves of muscle unloaded on the summit (Kaiser) . . 374 



207. with same muscle more heavily loaded (Kaiser) . . 374 



208. Series of release curves following arrest, with muscle cooled to C. 



(Kaiser) ....... . . .374 



209. Isotonic and arrest curves of an unloaded muscle. Modified from 



Kaiser ......... 375 



210. Two isotonic curves of an unloaded muscle (Kaiser) . .. . 375 



211. Isotonic curve and release curve, after arrest, of an unloaded muscle 



(Kaiser) . . . . . . . . . 377 



212. Muscle curve, showing summation of inadequate stimuli (Richet) . 380 



213. Method of measuring mechanical latency of muscle . ... 382 



214. Facsimile of the photographic record of the beginning of the contraction 



of the sartorius . . . . . . 382 



215. Fatigue curve of muscle (Kronecker) ..... 38.7 



216. Muscle curves showing the effect of fatigue (Waller) . . 388 



217. Showing curves of rigor mortis of white and red muscles of rabbit 



(Bierfreund) . . ..... . . .392 



218. Curves of rigor mortis in fresh and exhausted muscle (Nagel) . . 392 



219. Engelmann's apparatus for recording contraction of a violin string on 



heating . . . . ...... . 396 



220. Blix's apparatus for taking the extension curves of muscle with the load , 



either increasing or decreasing (Fick) ..... 404 



221. Two extension curves of the same excited muscle taken continuously 



with decreasing and increasing loads (modified from Fick) . . .405 



222. Showing the arrangement of the fibres in the gastrocnemius muscle . . 408 



223. Diagram of method for studying the electrical properties of muscle . 409 



224. Non-polafisable electrode . 410 



225. Diagram of muscle rhomb- ..... -412 



