PROC. ACAD. NAT. SCI. PHILA. 1909. 



PLATE XII. 



Lavn.Z 



Mes, 



MCav. 



-Ect. 



■T.St. 



~f~ Mes, 



S.Ap- lf..Ap. 



MONTGOMERY. THE SPINNERETS, ETC., OF ARANE1DS. 



