DEVELOPMENT OF THE CHOROID PLEXUS 89 



at first in the floor of the lateral ventricle but anteriorly comes to 

 lie in the lateral wall (figs. 2 and 23, c.s.l.r.). The medial portion 



pcv t,p.p. 



1 2 



Fig. 1 Section through thediencephalon of the 19mm. embryo, H 173. X 13J. 

 Slide 21, Sect. 11. Compare the photograph of this section, figure 27. 



Fig. 2 Section through paraphysi.i and hypothalanuis of the 10 mm. embryo, 

 H 173. X13J. SIide23. Sect. 13." 



Fig. 3 Section through epiphysis of the 19 mm. embryo, n 173. X 15. Slide 



12, Sect. 4. 



Fig. 4 Section through epiphysis of the 28 mm. embryo, H 91. X 10. Slide 

 9, Sect. 148. Ependyma solid black. 



