Diseases of the Nervous Systent. 233 
been attained than with others. The dose is from one- 
fortieth to one-tenth of a grain, or of nux vomica one to 
two grains, twice daily in bolus, and a/ways after a meal. 
Some practitioners prefer the /igwor strychnia, one fluid 
drachm of which contains half a grain of the alkaloid, as 
being more effective as well as more readily administered. 
The seton is also employed, together with blisters, and 
sometimes mercurial ointment in chronic cases, the parts 
selected being the back of the head, along the spine, &c., 
as indicated by the symptoms. The hot bath often soothes 
and rests the patient. Fresh air and walking exercise 
must be given according only to ability, never to tire cr 
distress ; and when the strychnine can be safely dispensed 
with, a "change to cod-liver oil and iron tonics will be 
advisable. Give plain nourishing diet, always ensuring 
an appetite for the following meal. Remove constipation 
by enemas only as a safe precaution against exhausting 
the little strength of the patient. 
Cramp differs from chorea in the continuance of 
painful spasm in a portion only of a muscle, arising from 
some cause local or general in its nature. Thus it may 
be due to poisoning, rheumatism, or the effects of cold 
after being in the water. The. hind limbs are most 
commonly seized. 
Treatment consists of the hot bath, followed by swath- 
‘ing in heated rugs or flannel until the body is thoroughly 
dried, and afterwards removed singly. The best remedy 
is the anodyne mixture No. 6, followed by friction to 
the part. Subjects of the malady should have dry beds 
and quarters, with freedom from cold draughts. 
Injuries to the Head usually result in signs which 
vary with the amount of actual damage inflicted, and 
the area over which the effects are distributed. The 
indications are those of concussion and compression of the 
brain, with more or less damage to the COUErINgS, and 
apoplexy. Under these circumstances it is frequently a 
question of difficulty to estimate to what extent these 
conditions may exist. 
In Concussion of the Brain the animal is said to be 
stunned, that is, motionless and insensible ; respiration 
