The spores are inclosed in these sacs, usually eight in a sac.
This sac later divides into two, and develops into the lungs of the animal.
The Serpent is converted into a sac, holding up the rain-waters.
If the sac then is not to be opened, the rest of the operation is very simple.
If the sac is to be opened, how can it be done with least danger to the bowel?
It is ...