88 VETERINARY OBSTETRICS. 
lungs being unprotected. This condition is known as 
“Ectopia cordzs.” Often the foetus is born with the 
cranial cavity enlarged with fluid,—“ Hydrocephalus” or 
“ Hydrops capitis.” First of all, fluid collects in the 
ventricles, and the diseased process may go on until 
Fic. 37. 
SKULL OF HyDROCEPHALIC CALF: THE CRANIAL BONES ARE PARTIALLY 
DESTROYED AND DEFECTIVE. 
the whole of the brain structure is displaced by fluid, 
and only retained in position by the skin. This 
condition often gives rise to difficult parturition, and 
must be reduced by puncturing and allowing the fluid 
to escape. 
There are several other mal-formations of more or 
less importance, but which may be passed over here. 
