. Journal of comparative neurology . rebri and theidentification of the vomeronasal nerves which are then followedto the caudal border of the olfactory bulb where the nervusterminalis may be seen associated with it. Then the course ofthis nerve can be easily traced caudalward. The microscopicalstudy of the dissected nerves was made by dividing the vomero-nasal nerves at the dorsal border of the vomeronasal organ andat their entrance to the vomeronasal formation of the olfactory NERVUS TERMINALIS TN DOG AND CAT 147 bulb. The nervus terminalis was likewise divided where it en-tered the brain wal
. Journal of comparative neurology . rebri and theidentification of the vomeronasal nerves which are then followedto the caudal border of the olfactory bulb where the nervusterminalis may be seen associated with it. Then the course ofthis nerve can be easily traced caudalward. The microscopicalstudy of the dissected nerves was made by dividing the vomero-nasal nerves at the dorsal border of the vomeronasal organ andat their entrance to the vomeronasal formation of the olfactory NERVUS TERMINALIS TN DOG AND CAT 147 bulb. The nervus terminalis was likewise divided where it en-tered the brain wall. These nerves were then removed from thespecimen in one mass and stained in Van Giesons hematoxylin-picro-fuchsin stain. Figures 3 and 4 represent drawings madefrom favorable portions of such a preparation. The serial sec-tions used for this study consisted of a transverse series madefrom the medial half of the olfactory bulb and peduncle of thedog. The sections were stained in hematoxylin and congo red. Formotio votTieronflsolis,. IOtcj vorrieronasalis N terroina lis Fig. 1 A median section of the head of a dog with the frontal lobe of thebrain, the nasal septum and the mandible removed, showing the course and ter-mination of the nervus terminalis and its connection with the vomeronasal size. The relation of these structures as seen in the dissections ofthe dog are shown in figure 1. The vomeronasal nerves uponpassing through the cribriform plate course almost horizontallyacross the narrow medial aspect of the olfactory bulb to itscaudal border where they break up in a fine plexus and turnlateral ward upon the dorsal aspect of the olfactory bulb. Con-nected with this plexus are several small bundles that usuallyunite into a single trunk which extends caudoventralward on the 148 ROLLO E. McCOTTER medial surface of the olfactory peduncle where it appears to enterthe brain substance some distance from the olfactory bulb. Inone specimen, however, instead of enteri
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectmedicine, bookyear191
