ILLUSTRATIONS XXXI 



FIG. PACK 



197. Tracing showing the action of pituitrin on the uterine contractions and 



blood pressure in a dog 768 



198. Tracing showing the constricting action of pituitrin on the bronchioles and 



its effect on blood pressure in a spinal dog 769 



199. Showing the appearance before and after the onset of acromegalic symptoms 771 



200. Hand of a person affected with acromegaly 772 



201. Diagram showing gradual evolution of nervous system in sponge, sea 



anemone, and earthworm 783 



202. Diagram of nervous system of segmented invertebrate, supraesophageal 



ganglion, subesophageal ganglion, esophagus or gullet 784 



203 Schema of simple reflex arc 785 



204. Thermoesthesiometer 791 



205. Cold spots and heat spots of an area of skin of the right hand .... 792 



206. Diagram to show axon reflex of sensory nerve fiber of skin 797 



207. Arborization of collaterals from the posterior root fibers around the cells 



of the posterior horn 798 



208. Normal cell from the anterior horn, stained to show Nissl's granules . . 799 



209. Part of an anterior cornual cell from the calf's spinal cord, stained to 



show neurofibrils 800 



210. Living nerve cells examined by the ultramicroscope 801 



211. Tracing from the hind limb of a spinal dog during the scratching move- 



ments produced by applying stimuli at two skin points 812 



212. Eecord from myograph connected with the extensor muscle of the knee . 815 



213. Diagram showing the muscles and nerves concerned in reciprocal inner- 



vation 816 



214. Eeciprocal innervation 817 



215. Sherrington 's diagram illustrating the mechanism of reciprocal innervation 818 



216. Diagram showing the reflex arcs involved in the scratch reflex .... 822 



217. Showing region of body of dog from which the scratch reflex can be elicited 823 



218. Diagram showing the segmental arrangement of the sensory nerves . . 837 



219. Outer aspect of the brain of the chimpanzee 847 



220. Three sections through different parts of the cerebral cortex 852 



221. The location of the chief motor and sensory areas on the outer and mesial 



aspects of the human brain 853 



222. Footprints after destruction of the cerebellum in a dog 866 



223. Diagrams to represent respectively a ventral view of the left half and a 



dorsal view of the right half of the human cerebellum illustrating the 

 scheme of subdivision according to Bolk 868 



224. Schema of the parts of the mammalian cerebellum spread out in one plane 869 

 225 and 226. The inferolateral and the posterior aspect of the human cerebellum 



indicating certain cerebellar localizations according to Barany . . . 871 



227. The semicircular canals of the ear, showing their arrangement in the 



three planes of space 874 



228. Diagram illustrating the different arrangements of the internuncial neurons 



of the voluntary and involuntary nervous systems 878 



229. Diagram of the sympathetic nervous system to be used along with Fig. 232. 



(Color Plate.) 878 



230. Diagram showing the manner of connection of the fibers composing the 



great splanchnic nerve. (Color Plate.) 878 



