386 J. B. JOHNSTON 
lbFEZZ Fr Cy 
ZS Wi: EG ‘k 
tr o-h 
Fig. 18 The fifth section of the same series. The right primordium hippocampi 
shows the first stria medullaris bundle. On the left the tractus olfacto-habenu- 
laris comes up through the lower part of the primordium hippocampi and the 
eminentia thalami. 
