For the prostration and weakness that is liable to follow thermic fever, mineral tonics such as the salts of iron or zinc may be resorted to. EPILEPSY. FALLING SICKNESS. Definition. Frequency. Susceptibility: dogs, pigs, cattle, horses, parrots, sparrows. Divisions: slight and severe: Jacksonian (partial): symptomatic; idiopathic. Lesions: inconstant: of brain, cranium, cerebral circulation, myelon, poisons in blood, dentition, cortical and ganglionic lesions, cerebral asymmetry, stenosis of vertebral canal. Medullar asymmetry, traumas of cranium, anæmia, bleeding, carotid ligation, spinal reflexes, irritation of skin, creatinin, cinchonoidin, lead, ergot, nitro-pentan, nitro-benzol, ptomaines, toxins, parasites, nerve lesions, local hyperæsthesia (withers of horse, recurrent ophthalmia), indigestion, constipation, sciatic neuritis. Causes: nervous predisposition, heredity (man, cat, dog, ox), sexual excitement, fear, sudden strong visual impression, uric acid in blood, meat diet. Symptoms: =horse=, sudden seizure, bracing feet and limbs, swaying, fall, convulsive rigidity, jaws working or clenched, eyes rolling, salivation, stertor, dyspnœa, sensation absent. Duration. Symptoms of localized epilepsy. =Cattle=, bellow, stertor, rolling eyes, jerking, rigidity, fall. =Sheep.= =Swine= premonitory malaise, jerking, champing jaws, fall, trembling, rigidity, involuntary discharges. =Dog= trembles, cries, falls, rigidity, clonic contractions, stertor, sequelæ. Diagnosis: sudden attack, unconsciousness, spasms, quick recovery, no spasms in syncope, vertigo has no spasms, thrombosis has symptoms developed by exercise. Jurisprudence: animal returnable after twenty-eight days (Wurtenberg, etc.,) thirty days (France). Treatment: of susceptible brain, and peripheral irritant. Correct all irritation or disease, or expel parasites. Nerve sedations: bromides, opium, valerian, belladonna, hyoscine, duboisine. Tonics: zinc, arsenic, silver, baths, electricity. Borax. Vegetable diet. Castration. Avoidance of excitement. Surgical operations. Trephining. Excision of cortex. Outdoor life. _During a fit_: amyle nitrite, chloroform, ether, chloral, warm bath, cold or warmth to head, quiet secluded place. _Epilepsy_ is the name given to a class of cases characterized by a sudden and transient loss of consciousness with a convulsive seizure, partial or general. It appears to be due to a sudden explosive discharge of convulsive nervous energy, which may be generated by a great number of causes of morbid irritation—pathological, traumatic, or toxic. As a rule the epileptic seizure is but the symptomatic expression of a complex derangement which may be extremely varied as to its nature and origin.