NERVOUS DISEASES. ' 399 
the fact that the brain is divided into two halves, each 
half sending its nerves and stimulus to the opposite side of 
the body. When only one side of the body is affected it is 
called hemiplegia; when the upper or lower portion, para- 
plegia; if only a limb, it is paralysis. Causes: Obstruction, 
pressure on the nerves by tumours, effusions, dislocations, 
injuries especially to the head or spine, atrophy of the brain, 
lead poisoning. It often follows an attack of apoplexy; in 
short, anything that enervates the system may be an inducing 
cause. Treatment: Should the attack come on suddenly, 
as it often does, with excitment and twitching of the muscles, 
a strong nerve sedative must be given. The following is 
good :— 
Ge Sermo 25d ahi ee Sei cies Wada Uda OnNne, 
Spirits of Camphor ..........eee088 Half ounce. 
PtRGPy ly ate vets (iigos Use ee lee Dareewe oe MATE OUuneE: 
Laudanumi.sicescectsseeélessenees Quarter cance. 
Mix, and give a teaspoonful in a cupful of the infusion of 
hops, valerian, or skullcap. Give this every half hour till the 
spasms relax. Ifthe patient 1s in good health the course of 
medicine once or twice a week will do good; if toc weak for 
this, use the milder means to restore the natural circulation 
of the blood. If the lower part of the body is paralysed and 
the bowels lose power of action, an enema of elm and anti- 
spasmodic powder or tincture will be required. Local steamings 
to the parts affected, and stimulating liniments should be used. 
Keep the bowels open with the Comp Leptandrum Powder. 
Make a mixture of the nervines :— 
Prickly Ash Bark. ...casescsseeceeees One ounce. 
Valeria, fcisens beee heer ened eer ene ANG OMitirey 
SHEUCAG 5 ve ade pee tnd wee 6:68 bead oH) COT OUUEES 
Wild Chetry... cscsesecsccotsoeseoses One ounce. 
Poplar Barks. cies a es's'sescatiecwesss One ounce. 
In three pints of water. Boil down to two, strain, add iwo 
ounces tincture of cayenne. Take a wineglassful three dimes 
