Abstract
Hydrocephalus was provoked in rabbits by means of cisternal injection of kaolin. This led to a highly significant increase in the size of the cerebral ventricles. Control experiments confirmed that the hydrocephalic condition was accompanied by a significant increase of the intraventricular pressure. Diversion of cerebrospinal fluid by means of a ventriculo-subcutaneous shunt was followed by a significant decrease in the size of the ventricles, i. e. that the dilatation of the ventricles was partially reversible.