198 Journal of Comparative Neurology and Psychology. 



Fig. 4. Transection tbrongh the rostral part of the cerebral beuusi)beres 

 of a 50 cm. carp. Weigert metbod. X 21 (Zeiss couip. oc. 8, obj. A* witb 

 tbe pointer at lU. Reduced to tbree-fiftbs). Sliows tbe nervns terminalis 

 l)artly imbedded in tbe tractus olfacto-lobaris medialis wbicb it bas passed 

 tbrougb dorso-laterad. Compare its location in Fig. 3. Note tbat tbe n. term. 

 now lies Itetween tbe tr. olf. lob. med. and tbe rad. olf. med. prop.; n. tcnii.. 

 nervus 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. 



