tTh. 

 hah 



sTrmed. 



trolfhab.med. 

 rolfhab.lat 



flat! 



stnmed 



TrolfnabJat 



Figs. 15 to 24 Drawings from a series of transverse sections (each about 50 n 

 thick) through the thalamus and midbrain by the Golgi method. 



Fig. 15 Through the preoptic recess (r.po.) immediately in front of the optic 

 chiasma. . The origins of the lateral and medial olfacto-habenular tracts from 

 the nucleus preopticus (nuc.po.) are shown on the right side, and on the left side 

 the tractus preoptico-intercalaris (tr.po.i.) near its connection with the pre- 

 optic nucleus; cf. figure 25. X 22 (cvic, 145). 



Fig. 16 Two sections farther caudad through the rostral end of the optic 

 chiasma. X 22 (cvic, 147). 



312 



