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Updated: June 7, 2025
Of incised wounds an elliptical cicatrix is typical, linear being chiefly found between the fingers and toes. By way of disguise the hair may be dyed black with lead acetate or nitrate of silver; detected by allowing the hair to grow, or by steeping some of it in dilute nitric acid, and testing with iodide of potassium for lead, and hydrochloric acid for silver.
The reagents are solution of mercury iodo-chloride prepared by dissolving of 25 grms. iodine, 500 c.c. alcohol of 95 per cent., and of 30 grms. mercury chloride in an equal measure of the same solvent; both liquids are filtered and united; a standard solution of sodium hyposulphite produced by digestion of 24 grms. of the dry salt with 1 liter water and titration with iodine solution; solution of potassium iodide of 1:10; chloroform, and finally a solution of starch.
From a burette divided into 0.1 c.c. a solution of caustic soda is poured with continual gyration of the flask into the tinged liquid, and the percentage of combined iodine ascertained by difference; for this purpose 20 c.c. of mercury iodo-chloride are tested, on introduction of a solution of potassium iodide and starch, previously to its use as reagent.
In a short time he became salivated, and his teeth got loose. He went home, and shortly his mother appeared at the laboratory with a horsewhip, which she proposed to use on the proprietor. I was fortunately absent, and she was mollified somehow by my other assistants. I had given the boy considerable iodide of potassium to prevent salivation, but it did no good in this case.
Sometimes an incision is made into the diseased tissue and a caustic preparation introduced. The most desirable method of treatment is the administration of large doses of iodide of potassium in a drench, or in the drinking water. The dose is from one to three drachms daily for a period of seven to fourteen days.
Emetics, purgatives, and stimulants. Many of the synthetical coal-tar products now so largely employed as analgesics are powerful toxic agents. =Phenazone, Antipyrine, or Analgesin=, is a complex benzene derivative prepared from aniline, aceto-acetic ether, and methyl iodide. It is in colourless, inodorous, scaly crystals, which have a bitter taste. It is soluble in its own weight of water.
It is found that 100 parts of iodine yield 135 parts of very white, but slightly alkaline, iodide of potassium. * I shall present the preparation of only a few iodides, and such as are more intimately connected with the Daguerreotype. Experiment.
It is one of the very few really active products that the chemists have found in a long time. Well, where is the doctor who knows that, applied in a compress with iodide and cold Bondonneau spring water, antipyrine combats the supposedly incurable ailment, cancer? And if that seems incredible, it is true, nevertheless."
Purgatives are always more or less useful, and often required to be renewed with all the regularity of habit. Then too, the iodides, especially iodide of sodium or potassium, as recommended by M. Germain See, frequently prove of excellent service by aiding elimination and facilitating the mutations.
Some naturally passed out in the faeces and urine. I was able to prepare several globules of metallic silver, as also all the well known chemical combinations, such as sulphide, chloride, oxide, iodide, bromide, bichromate of silver, etc.
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