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Sumac or tannic acid, in combination with alumina, may be held to be equally inoffensive; now it is a fact that the great bulk of cotton goods are dyed with the aniline colors by the agency of these harmless chemicals.
A medical friend of the writer tested the efficacy of the plant known by that name and found it to be much superior to either gallic acid or tannic acid in stopping blood. The Guhyakas occupy, in Hindu mythology, a position next only to that of the gods, and superior to that of the Gandharvas who are the celestial choristers.
Hands usually clenched; feet arched and inverted. Congestion of brain, spinal cord, and lungs. Treatment. Emetics or stomach-pump if the patient is deeply anæsthetized. Tannic acid and permanganate of potassium. Bromide of potassium 1/2 ounce with chloral 30 grains, repeated if necessary. Quarter of a grain. Ten minutes; usually two to four hours. Method of Extraction from the Stomach.
Where this is the case, tapeworm will never occur. Tea. Tea should not be infused longer than three or four minutes, and cream should be used with it. The albuminous matter in milk tends to throw down some of the tannic acid in an insoluble form. Much tea-drinking produces nervousness and indigestion.
Tannin is now prepared in the forest and brought to the tanners, who put their tanneries where they please, usually near some large city. The hides are first soaked in water, and every particle of flesh is scraped away. They are laid in heaps for a while, then hung in a warm room till the hair loosens and can be easily removed, then soaked in tannic extract and water.
I have to study my throat." "Why, what better astringent can you have than tannic acid?" the old gentleman called down the table. "I suppose you drink those washy abominations that the young men of the day prefer to honest wine; what's that I hear about lemonade? Lemonade!" he repeated, with disgust.
Make a note of the fact that long boiling sets free tannic acid, powerful enough to literally tan the coats of the stomach, and bring on incurable dyspepsia. Often coffee without milk can be taken, where, with milk, it proves harmful; but, in all cases, moderation must rule. Taken too strong, palpitation of the heart, vertigo, and fainting are the usual consequences.
"On the morning of the 2nd October we reached Laramie, where we saw the works of the Union Pacific Railway Company for Burnettizing their ties. The ties are placed on trucks, run into a cylinder, steamed, treated with a solution of chloride of zinc, with glue mixed with it, and afterwards with a solution of tannic acid.
In acute eczema it is advisable to protect the part against water, filth and air. Powders and ointments may be used during the early stages of the inflammation. Two parts boric acid, four parts flour, and one part tannic acid may be dusted over the moist surface. One part zinc oxide and twelve parts vaseline is a useful ointment.
This dye is essentially an ink, the tannic acid of the sumac combining with the sesquioxide of iron in the roasted ocher, the whole enriched by the carbon of the calcined gum. There are, the Indians tell me, three different processes for dyeing yellow; two of these I have witnessed.
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