PLATE 8 



EXPLANATION OF FIGURES 



53 Transsection through the cerebellum and posterior portion of the mid- 

 brain, 23 mm. larva. X 50. 



54 Transsection through the olfactory bulb, 30 mm. adult. X 50. 



55 Transsection just cephalic to the interventricular foramina, 30 mm. adult. 

 X50. 



56 Transsection through the posterior poles of the cerebral hemispheres, 30 

 mm. adult. X 50. 



57 Transsection through the mid-brain and hypothalamus, 30 mm. adult. 

 X 50. 



58 Transsection through the cerebellum and posterior portion of the mid- 

 brain, 30 mm. adult. X 50. 



REFERENCES 



a. c, anterior commissure 

 chl. c, cerebellar commissure 

 fi. lat., fissura lateralis 

 gl., olfactory glomeruli 

 gr.c, granule cell layer of olfactory bulb 

 hh., habenula 



hip. c, hippocampal commissure 

 7)1. br., mid-brain 



m. c, mitral cell layer of olfactory bulb 

 mol. c, molecular cell layer of olfactorv 

 bulb 



olf. n., olfactory nerve 



p. hip., primordium hippocampi 



p. po., polus posterior 



s. c, superior commissure 



s. (/., sulcus diencephalicus dorsalis 



s. ep., septum ependymale 



s. I., sulcus limitans 



s. m., sulcus diencephalicus medius 



•s. v.. sulcus diencephalicus ventralis 



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