INTERNAL GENERATIVE ORGANS OF THE FEMALE, 667 
by its peritoneal coat with the capsule of the ovary, but the 
edge of its epithelial and muscular coats can be seen beneath 
the peritoneal coat, forming the rim of an open funnel. The 
connection between the tuba and the ovary is secondary, and 
its orifice opens into the sub-peritoneal spaces, in which the 
egg-tubes lie. 
F1G. 92.—A portion of one of the egg tubes from the ovary of a Blow-fly. Seen with 
a }-inch objective. ef, egg-tube ; 0, to 0,, ova; st, egg-stalk 5 ¢, terminal thread ; 
m, micropyle ; y, matured yelk of 0,. 
The Egg-Tubes.—Each egg-tube consists of a thin, apparently 
homogeneous membrana propria. It is divided by constrictions 
into several chambers, each of which contains an ovum; these 
are termed egg-chambers. The ova in these chambers are 
seen in several stages of development ; one only is matured, 
