Nitricum Acidum nit-ac.

Suitable especially to lean persons of rigid fibre, dark complexion, black hair and eyes—the brunette rather than blonde—nervous temperament.

Persons suffering with chronic disease who take cold easily; are disposed to diarrhœa; rarely to those who suffer with constipation.

Old people, diarrhœa and great weakness.

Excessive physical irritability.

Pains: sticking, pricking, as from splinters; suddenly appearing and disappearing; on change of temperature or weather; during sleep; gnawing here and there, as from ulcers forming.

Diseases: which depend on some virulent poison—mercury, syphilis, scrofula—in broken-down, cachectic constitutions; hateful and vindictive.

Irritable, headstrong; hateful and vindictive; inveterate, ill-willed, unmoved by apologies.

After continued loss of sleep, long-lasting anxiety; over-exertion of mind and body from nursing the sick (Coc.); anguish from the loss of his dearest friend (Ign.).

Sensation: of a band around head, around the bones (Carb. ac., Sul.); of a splinter in affected parts, ulcer, piles, throat, ingrowing toe nail, < on slightest contact.

Often anxious about his own illness; constantly thinking about his past troubles; mind weakened and wanders; morbid fear of cholera.

Ozena: green casts from the nose every morning.

Diarrhœa: great straining but little passes; as if stayed in rectum and could not be expelled (Alum.); pain as if rectum and anus were torn or fissured (Nat.); violent cutting pain after stool, lasting for hours (Rat., Sul.).

Very sensitive to rattle of wagons over paved streets.

Urine: scanty, dark brown, strong-smelling, like horse's urine; cold when it passes; turbid, looks like remains of a cider barrel.

Warts, condylomata: sycotic or syphilitic; large, jagged, pedunculated; bleeding readily on washing; moist, oozing; sticking pain (Staph., Thuja).

Ulcers: easily bleeding, pricking pains especially on contact (Hep.); zigzag, irregular edges; base looks like raw flesh; exuberant granulations; after mercury or syphilis or both, engrafted on a scrofulous base.

Hemorrhage: from bowels in typhoid or typhus (Crot., Mur. ac.); after miscarriage or post-partum; from over-exertion of body; profuse, bright or dark.

Affects especially the mucous outlets of the body where skin and mucous membrane join—mouth, nose, rectum, anus, urethra, vagina (Mur. ac.).

Complementary: Arsenicum, Caladium.

Follows well: after Calcarea, Hepar, or Thuja, but is most effective after Kali carbonicum.

Should not be used before or after Lachesis.

Often difficult to distinguish from Mercury; but is adapted to black-haired people, while Mercury is more useful in light-haired persons.

Evening and at night; contact; change of temperature or weather; on waking; while walking; rising from a seat.

While riding in a carriage (the reverse of Coc.); from eructations.

Quotidian; tertian; typhoid; typhus; yellow fever.

Afternoon and evening.

Continuous chilliness in the evening; before going to bed and after lying down; in bed, worse from uncovering or moving (Nux). Chill in the afternoon while in the open air, for an hour and a half; afterwards dry heat in bed, with delirium and a sort of half-waking, dreamy state; sweat and sleep towards evening. Chilliness in the afternoon, for an hour; then heat over the whole body, for a quarter of an hour; afterwards profuse perspiration over the whole body for two hours; there is no thirst in either cold or hot stages. Cold hands, with extreme ill-humor. Con- stant coldness of the feet as far up as the calves. Icy coldness of soles of feet, preventing sleep at night.

Dry, internal at night; desire to uncover (Acon.); pricking all over, as from needles. Dry heat of hands and face in flushes, with sweat of hands. Constant paroxysms of flushes of heat, of single parts, or over entire body (Fer., Sep.). The blood seemed hot at night, especially in the hands, preventing sleep. Great heat in the face and hands; or heat in face, with icy cold hands. Dryness of the throat.

All over the entire body after eating (Carbo a.). Sweat, with cold hands and blue nails. Sweat sour, offensive, like horse's urine. Night-sweat, on covering up in bed (on being covered sweats profusely all over, Cinch.). Night-sweat, only on the parts on which he is lying (Acon., Bry.—on the part not lain upon, Benz.). Profuse night-sweat, every other night. Offensive auxilliary sweat (Bov.). Profuse sweat on the soles, causing soreness of the toes and balls of the feet, with sticking pain as if he were walking on pins. Perspiration in the morning.

Coated white or lemon-color; dry in the morning; saliva profuse, fetid, acrid; corners of mouth sore and ulcerated; cadaverous odor. Taste, bitter after eating (Puls.); aversion to meat and bread; long for fat (reverse of Puls.). Corners of mouth ulcerated. Cracking in the maxillary articulation when chewing or eating.

During fever full, hard and tense. In old cases irregular; fourth beat intermits; one normal beat is often followed by two rapid beats.

Heat; in flushes, in paroxysms, of single parts or over entire body.

Sweat; with cold hands, blue nails; sour, offensive, like horse's urine; profuse night sweat; profuse on soles causes soreness of toes and balls of feet; sticking pain as if walking on pins.

Chronic cases; a general anæmic, cachectic condition.