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Updated: May 29, 2025
Behind the wires of his cages, he provokes the moving spectacle of the scorpion at grip with the whole entomological fauna, in order to test the effects of its terrible venom upon various species; and thus he discovers the strange immunity of larvae; the virus, "the reagent of a transcendent chemistry, distinguishes the flesh of the larva from that of the adult; it is harmless to the former, but mortal to the latter"; a fresh proof that "metamorphosis modifies the substance of the organism to the point of changing its most intimate properties."
Nor was the opportunity lost by Halket, who, unable to understand how she should have called herself Mary Brown, began, in the obscure light of the room, to scrutinize her form and features; and in doing this, he went upon the presumption that this second Mary Brown only carried the name of the first; but as he looked he began to detect features which riveted his eyes; where the reagent was so sharp and penetrating, the analysis was rapid it was also hopeful it was also fearful.
Litmus is also obtained from the same lichens as yield orchil. It is not used in dyeing, and is a violet-blue colouring matter when neither acid nor alkaline, but neutral as it is termed. It turns red with only a trace of acid, and blue with the least trace of alkali, and so forms a very delicate reagent when pieces of paper are soaked with it, and dipped into the liquids to be tested.
My attention wandered and I started to leave the cabin when I noticed my hand still held one of the specimens. It was withered and dry. September 17: The enthusiasm greeting the discovery that F's reagent mortally affected the Grass was only tempered by the dampening thought that its action had been incomplete.
Just as an acid solution was the principal reagent in alkalimetry, and the alkali solution used only to make certain of the end-point, the solution of the oxidizing agent is the principal reagent for the titration of substances exerting a reducing action.
Unquestionably Spiritualists will be at no loss to explain this puzzle; possibly they would say that I have here unconsciously given one of the very best of proofs of the reality and genuineness of Materialization, and that my unbelief acts on the sensitive, evanescent features of the Spirit like a chemical reagent, and that but it is not worth while to weaken by anticipation their solacing arguments.
But, as I have said, a true tale in the ears of criminals acts like a chemical reagent. It sets them to work lying, and the lie burns off, disclosing naked truth again. But, mother of me, they were daring liars! The fellow who had come out of the scrap more or less unscathed piped up for the three, the other two nodding and prompting him in whispers. "What that Indian says in the main is true.
When these are one, good is in truth and truth is in good, and truth is of good and good is of truth; thus one recognizes the other as its mutual and reciprocal, or as an agent recognizes its reagent, each in its turn. This universal marriage is the source of marriage love between husband and wife.
Such a reagent, for instance, as nitric acid has an extremely injurious effect upon the plates.
Nessler's reagent is the most delicate, a reddish-brown colour or precipitate being produced, but ammonia may be recognized by its pungent odour, dense fumes given off with hydrochloric acid, and strong alkaline reaction. Treatment. Vinegar and water. Other treatment according to symptoms. Fatal Dose. One drachm of strong solution. Four minutes.
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