WATER ON" THE BRAIX 



267 



mercury may be useful. Nutritious, laxative food. Draw 

 urine with catheter frequently. Kub aud keep affected 

 part warm. 



WATER ON THE BRAIN (HYDROCEPHALUS), 



Is caused by the accumulation of watery fluid either 

 between or below the membranes which cover the brain. 

 It usually occurs in the fetus, in which case, in order to 

 deliver the fetus, the enormous head is tapped with a 



Fig. 116. Hydrocephalus. 



trocar (with long canula) or a knife. The head collapses. 

 The disorder may also appear after birth. 



The same parasite that afflicts the brain of sheep may 

 afflict cattle. The disorder is known as ( turnsick/ Tre- 

 phining may be tried. 



