Plate 



w 



-If. Oil. 

 Chi. G~r. 



Nwc. Gr. 



Nv.c.Retr. 



Ot. 



ObT, 



Npli.FJ). 



K 



Vph.F.V. BJh^ 



Fig.29x 20. 



w 



'(E.Conn. 



W 



4——M.Circ. 



'**%•*. 



Xtti 



