DISSECTION OF A COCKROACH 21 



ovary consists of eight whitish tubes, which appear beaded, in 

 consequence of their distension by a row of eggs. The eggs 

 at the lower end of each ovarian tube are large and almost 

 mature ; the next above are smaller and less advanced, and so 

 on. The ovarian tubes lead backwards to a common outlet, 

 which is concealed by the split seventh sternum. 



