LIST OF WOOD ENGRAVINGS. XXI 



FIG. PAGE 



194. Apparatus to measure rapidity of Transmission of Electric Stimulus 



through Motor Nerves ; after Budge, .... . 581 



195. Diagram of Nerve-current in Muscle; after Du Bois-Reymond, 



196. Plan of apparatus to exhibit the nervous electrical current; after Du Bois- 



Ki-ymnnd, 585 



197. Plan of apparatus to exhibit the nervous electrical current; after Du Bois- 



Keymond, ........ . 585 



198. Plan exhibiting Electrotonic condition of a Nerve during Passage of 



Electrical Currents of various strength ; after Funke, . . . 587 



199. Plan explanatory of extrapolur centripetal Cathelectrotonus ; after Funke, 588 



200. " centrifugal extrapolar Anelectrotonus ; after Funke, 588 



201. " " " Cathelectrotonus; after Funke, 588 



202. " centripetal " Anelectrotonus ; after Funke, . 589 



203. Plan showing direction of Centrifugal Currents ; after Budge, . . . 590 



204. " " Centripetal Currents; after Budge, . . . 590 



205. Diagram of Electrotonic state of Nerve ; after Radcliffe, .... 595 



206. Electrotonus of Nerve, . 595 



207. Magnified view of Transverse Section of Spinal Cord; after J. L. Clarke, 598 



208. Section of Gray Substance of Spinal Cord; original, .... 600 



209. Transverse section of Centre of Spinal Cord ; after Gerlach, . . . COO 



210. Longitudinal Section of Spinal Cord ; after J. L. Clarke, .... 602 



211. Antero-posterior Section of Lumbar Enlargement of Spinal Cord ; after 



Gerlach, " 603 



212. Lateral view of Medulla Oblongata ; after Lockhart Clarke, . . . 606 



213. Dissection of Medulla Oblongata ; after Solly (altered), .... 607 



214. Section of Cord through the first pair of Cervical Nerve?, . . 608 



215. " through the upper n'bresof origin of thefirst pair of Nerves, 608 



216. Section passing a quarter of an inch below Olivary Bodies, . . . 608 



217. Section immediately below Olivary Bodies, 609 



218. Section through lower part of Olivary Bodies, 610 



219. Section through point of Calamus Scriptorius, ...... 610 



220. Position of Nuclei in Medulla Oblongata, . . .... 611 



221. Section through upper part of Medulla Oblongata, 611 



222. Longitudinal Section through Medulla Oblongata, . . . . .611 

 [The preceding nine drawings were made by the Editor from sections made 



and kindly lent to him by Mr. Lockhart Clarke ] 



223. Section made through the summit of the Medulla Oblongata, after an un- 



published Memoir of Lockhart Clarke, ...... 611 



224. Course of the Sensory Tract in the Medulla Oblongata ; after Sir C. Bell, 613 



225. Course of the Motor Tract in the Medulla Oblongata ; after Sir C. Bell, . 614 



226. Nerves of the Orbit ; after Arnold, . . 618 



227. Distribution of Facial Nerve; after Erasmus Wilson, .... 619 



228. Diagram of Distribution of Eighth Pair; after Erasmus Wilson, . . 621 



229. Diagram of section of part of Spinal Cord ; after Kiiss, .... 627 



230. " " " " .... 627 



231. " " " " .... 628 

 23.2. " " " " .... 628 



233. " " " " .... 629 



234. " " " " .... 629 



235. " " " " .... 629 



236. " " " " .... 630 



237. " " " " .... 630 



238. Plan of course of Roots of Spinal Cord, " .... 632 



