1*^7 



18S1.] -"-'-" [Stowell. 



B. Physiolog-ical — sensibility of mucous membrane of pharynx, 

 larynx, trachea, bronchi, bronchioli — motion of pharynx, larynx ; reflex 

 movements of broncho-palmonary passages, o-sophagus and stomach — 

 action upon secretions, e. g., gastric juice, biliary products, etc.* — indirect 

 influence upon phenomena of respiration and of "inhibition." 



Explanation op the Numbers and Abbreviations lsed in the 

 Figures. 



A. bas., A. basilaris ; A. cb., A. cerebralis posterior; A. cbl., A. cere- 

 bellosa inferior ; A. ver., Arteria vertebralis ; Ar. el., area elliptica (possibly 

 related to olivary body) ; ?, elongaled, pyriform area lateral from Ar. el., 

 whose homology is not determined; Cb., cerebrum; Cbl., cerebellum; 

 Ch., chiasma ; dpy., dorsipyramis (posterior pyramid) ; Ehr., G. Ehren- 

 ritteri ; hph., hypophysis ; I., G. inferius ; J., G. jugulare ; mtc, meta- 

 coelia (fourth ventricle) ; O., oliva, corpus olivarium (?) ; olf , lobus 

 olfactorius ; opt., N. opticus ; Pe., G. petrosum ; Px. ch., plexus choroideus 

 lateralis ; Px. phar., plexus pharyngeus ; Pn., Pons Varolii ; Rf , corpus 

 restiforme ; Vpy., ventripyramis (anterior pyramid) ; II., N. opticus; III., 

 N. motor oculi ; V., NJST. trigemini ; VI., N. abducens ; VII., N. faci- 

 alis ; VIII., N. auditorius, Port^o mollis ; IX., iST. glosso-pharyngeus ; 

 X., N. vagus ; XL, N. accessorius ; XII., N. hypoglossus : 1, accessory 

 filament from N. glosso pharyngeus ; 2, Rm. auricularis ; 3, anastomotic 

 twig from J. to Pe. ; 4, filament from origin line of IX. to 2 ; 5, ramulus 

 from 2 to cochlea ; 6, anastomotic twig to N. sympathicus ; 7, chorda 

 tympani ; 8, anastomotic twig from Pe. to X. ; 10, Rm. accessorius from 

 XI. ; 11, second accession from XI. ; 12, anastomotic filaments between 

 X. and XI. ; 13, filament from XII. to I. ; 14, Rm. from XI. to I. ; 15, 

 superior cervical ganglion of N. sympathicus ; 16, pharyngeal ramus from 

 IX. at Pe. ; 17, anastomotic filament from 10 to I. ; 18, anastomotic fila- 

 ment from 16 to Px. phar. ; 19, filament from 16 to N. laryngeus superior ; 

 20, cephalic ramus of IX. ; 21, caudal ramus of IX. ; 22, N. pharyngeus : 

 22 a, cephalic ramus ; 22 b, caudal ramus ; 23, filament from 22 to I. ; 24, 

 pharyngeal ramus of 22 b ; 25, cesophageal ramus of 22 b ; 26, filament 

 from 25 to 23 a ; 27, N. laryngeus superior ; 28, cephalic = ental ramus; 

 29, caudal =: ectal ramus ; a, twig to 50 ; 30, pharyngeal ramus of 29 ; 

 31, filament from 30 to 25 ; 32, Rm. of 29 to Mb. crico-thyroidea ; 33, to 

 Cp. thyroideum, a, to descendens noni ; 34, cephalic offset of 28 ; 35, fila- 

 ments to interior of larjmx ; 36, to epiglottis ; 37, to arytaeno-epiglottidean 

 folds ; 38, caudal offset of 28 ; 39, twig from 34 to 38 ; 40, twig from 38 to 

 M. arytajnoideus, etc. ; 41, palmate plexus ; 42, ramus to 50 ; 43, N. car- 

 diacus magnus sinister ; 44,' N. cardiacus minor ; 45, origin of 50 ; 46, 

 division of N. vagus sinister ; 47, union of lateral rami ; 48, union of 

 mesal rami ; 49, division of N. vagus dexter ; 50, N. laryngeus inferior. 



*The extent to which .secretions and excretions may be referred directly to N. 

 vagus is (juestionaljle. 



