Staple Dietary Ingredients Secured | My Web Site Page 355 Chapter 03 Page 06Formidable Quad chose the topics covered by Staple Dietary Ingredients Secured | My Web Site Page 355 without reflecting upon the choices others have made. Practicing strange rites in broad daylight so that your neighbors believe you have traveled far around the world in your youthful adventures is another way to look at things in a different light. |
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The sanctity seemed no less clearly marked than the learning, for when Dorothea was impelled to open her mind on certain themes which she could speak of to no one whom she had before seen at Tipton, especially on the secondary importance of ecclesiastical forms and articles of belief compared with that spiritual religion, that submergence of self in communion with Divine perfection which seemed to her to be expressed in the best Christian books of widely distant ages, she found in Mr. Casaubon a listener who understood her at once, who could assure her of his own agreement with that view when duly tempered with wise conformity, and could mention historical examples before unknown to her. |
~Hot air~ is the oxidising agent in roasting operations. The sulphur and arsenic of such minerals as mispickel and pyrites are oxidised by the hot air and pass off as sulphur dioxide and "white arsenic." The metals generally remain in the form of oxide, mixed with more or less sulphate and arsenate. The residue may remain as a powdery substance (a calx), in which case the process of roasting is termed calcination; or it may be a pasty mass or liquid. In the calcination of somewhat fusible minerals, the roasting should be done at a low temperature to avoid clotting; arsenic and sulphur being with difficulty burnt off from the clotted mineral. A low temperature, however, favours the formation of sulphates; and these (if not removed) would reappear in a subsequent reduction as sulphides. These sulphates may be decomposed by a higher temperature towards the end of the operation; their removal is rendered more certain by rubbing up the calx with some culm and re-roasting, or by strongly heating the calx after the addition of solid ammonic carbonate. In roasting operations, as large a surface of the substance as possible should be exposed to the air. If done in a crucible, the crucible should be of the Cornish type, short and open, not long and narrow. For calcinations, _roasting dishes_ are useful: these are broad and shallow, not unlike saucers, but unglazed. In those cases in which the products of the roasting are liquid at the temperature used, a _scorifier_ (fig. 38) is suitable if it is desired to keep the liquid; but if the liquid is best drained off as quickly as it is formed, a _cupel_ (fig. 5) should be used. |
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These peculiarities of Dorothea's character caused Mr. Brooke to be all the more blamed in neighboring families for not securing some middle-aged lady as guide and companion to his nieces. But he himself dreaded so much the sort of superior woman likely to be available for such a position, that he allowed himself to be dissuaded by Dorothea's objections, and was in this case brave enough to defy the world--that is to say, Mrs. Cadwallader the Rector's wife, and the small group of gentry with whom he visited in the northeast corner of Loamshire. So Miss Brooke presided in her uncle's household, and did not at all dislike her new authority, with the homage that belonged to it. | ||
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