Phil. Trans. MDCCCXL. Plate TZSSl.p. 5 gz. 
■ 
Ova from Pie Ovary, after Fecundation. 
Actual Sizes; Largest Ovum 0 ■ J Smallest 0 ■ J 
f Alt the Objects are from the Paid it; in Tij s 170, 171, 173,17^,180, magnified 5 o Diameters ; 
in Tie/. 177, irme/'l 1 3 00 I)iam . ; in all the other Tigures , 100 Diameters . ) 
c Germinal Vesicle, tUZed- 
wztho Cells. 
e Proper Membrane of the Substance by which 
the Germinal Vesicle is surrounded . 
f Thick transparent Membrane of the Ovum 
- "Zona peUucida- " 
Ad Fat. del. Martin- Barry. 
j Tunica granulosa ; its Cells in 
an altered state . 
JtBasire sculp. 
