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Updated: June 1, 2025
Then she turned and ran back to Brent Rock. Locke, in the mean time, had arrived at the laboratory of his old friend Hadwell, the chemist, where he was warmly welcomed. It was the usual dusty workshop of one devoted to one idea science with no touches of comfort. Hadwell fairly lived amid retorts, Bunsen burners, and reagents.
Hence the difficulty in acquiring a knowledge of the molecular structure of those alkaloids at all comparable with that attained in the case of other organic compounds. Of course synthesis could not be applied until analysis had revealed something of the molecular grouping of these compounds, so the action of different classes of reagents was tried upon the alkaloids.
All of these are soluble and in the presence of certain reagents, also existing naturally, can be deposited in metallic form. Therefore, if, as is contended, reef gold was formed with the reefs from solutions in mineral waters, by inferential reasoning it can be shown that much of our alluvial gold was similarly derived.
What Erasure Means The English Law What a Fraudulent Alteration Means Altered or Erased Parts Considered Memoranda of Alterations Should Always Accompany Paper Changed How Added Words Should be Treated How to Erase Words and Lines Without Creating Suspicion Writing Over an Erasure How to Determine Whether or Not Erasures or Alterations Have Been Made Additions and Interlineations What to Apply to the Suspected Document The Alcohol Test Absolute How to Tell which of Crossing Ink Lines were Made First Ink and Pencil Alterations and Erasures Treating Paper to Determine Erasures, Alterations and Additions Appearance of Paper Treated as Directed Paper That Does Not Reveal Tampering How Removal of Characters From a Paper is Effected Easy Means of Detecting Erasures Washing With Chemical Reagents Restoration of Original Marks What Erasure on Paper Exhibits Erasure in Parchments Identifying Typewritten Matter Immaterial Alterations Altering Words in an Instrument Alterations and Additions Are Immaterial When Interests of Parties Are Not Changed or Affected Erasure of Words in an Instrument.
My brother died at the head of his men. He couldn't ask more. Let Bull-with-a-beard alone." She set both elbows on her knees and laid her chin on both hands to stare at him again. He began to remember long-forgotten schoolboy lore about chemical reagents, that dissolve materials into their component parts, such was the magic of her eyes.
The vision of the miniature world faded out, and through the other eye came the impression of the outside of the polished brass tube of the microscope; the glass slide beyond, lit up by the reflector as though with a searchlight; and the plate-glass bench mirroring the cases of specimens and the shelves of chemical reagents.
These characteristics allow us to differentiate atropine and hyoscyamine, the reactions of which are almost identical, as will be seen from the following table, which shows the action of weak solutions of the acids named on the hydrochlorates of the bases: Reagents. Hyoscyamine. Atropine. Picric acid. An oil solidifying Crystalline precipitate. immediately into tabular crystals.
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.
The new "paint" left the iron or steel as brilliantly glossy as ever, but overcast with a beautiful iridescence, and immune to the most powerful reagents. The three men walked around the rapidly growing hull, and looked with excited interest at the heavy welded joints and the great beams. The ship seemed capable of withstanding a fall of several hundred feet with little damage.
One fact, at any rate, is out of reach of such refinements, and this is, that all the forms of protoplasm which have yet been examined contain the four elements, carbon, hydrogen, oxygen, and nitrogen, in very complex union, and that they behave similarly towards several reagents.
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