. The Journal of comparative neurology and psychology. o\t. UK. Fig. 2, Transection (liruugli the middle of tlie right olfactory crus of a 50cm. carp. Weigert metliod. X 21 (Zeiss comp. oc. S, ohj. A* reduced to two-thirds), n. term., nervus terminalis; md. olf. hit., radix olfactoria lateralis;rad. olf. mod. prop., radix olfactoria mediaiis propria; tr. olf. loh. incd.,tractus olfacto-lobaris medialis. Fig. 3. Transection through tlie caudal part of the right olfactory crusof a carp 50 cm. in length. Weigert method. X ^^ (Zeiss comp. oc. G, , reduced to two-thirds). This is a sec
. The Journal of comparative neurology and psychology. o\t. UK. Fig. 2, Transection (liruugli the middle of tlie right olfactory crus of a 50cm. carp. Weigert metliod. X 21 (Zeiss comp. oc. S, ohj. A* reduced to two-thirds), n. term., nervus terminalis; md. olf. hit., radix olfactoria lateralis;rad. olf. mod. prop., radix olfactoria mediaiis propria; tr. olf. loh. incd.,tractus olfacto-lobaris medialis. Fig. 3. Transection through tlie caudal part of the right olfactory crusof a carp 50 cm. in length. Weigert method. X ^^ (Zeiss comp. oc. G, , reduced to two-thirds). This is a section innnediately rostrad of thecerebral hemispheres and shows essentially the same features as Fig. 2. 198 Journal of Comparative Neurology and Fig. 4. Transection tbrongh the rostral part of the cerebral beuusi)beresof a 50 cm. carp. Weigert metbod. X 21 (Zeiss couip. oc. 8, obj. A* witbtbe pointer at lU. Reduced to tbree-fiftbs). Sliows tbe nervns terminalisl)artly imbedded in tbe tractus olfacto-lobaris medialis wbicb it bas passedtbrougb dorso-laterad. Compare its location in Fig. 3. Note tbat tbe n. lies Itetween tbe tr. olf. lob. med. and tbe rad. olf. med. prop.; n. terminalis; irid. olf. hit., radix olfactoria lateralis; nul. olf. vied,prop., radix olfactoria medialis projiria ; 1r. olf. loh. med., tractus olfacto-lobaris medialis; tr. istrio-tlial., tractus slrio-tbalamicus. Shrldon, Nervus Tennnialis in the Carp. 199
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