The second part of his positive holiness was superstitious; for God had appointed no such set fasts, neither more nor less but just twice a-week: "I fast twice a-week." Ay, but who did command thee to do so, other than by thy being put upon it by a superstitious and erroneous conscience, doth not, nor canst thou make to appear. This part, therefore, of this positive righteousness, was positive superstition, and abuse of God's law, and a gratification of thy own erroneous conscience. Hitherto, therefore, thou art defective in thy so seemingly brave and glorious righteousness.英文原著 · 《The Pharisee And The Publican》
"From the fact that the plate if prepared with positive electricity gives a positive picture, while it prepared otherwise it gives a negative, it is evident that electricity plays an important part in this process. The same is true to some extent with the compounds formed with iodine, bromine. and fluorine.英文原著 · 《American Hand Book of the Daguerreotype》
The same experiments may be made with another freshwater crustacean, namely Daphnia, with this difference, however, that it is as a rule necessary to lower the temperature of the water also. If the water containing the Daphniae is cooled and at the same time carbon-dioxide added, the animals which were before indifferent to light now become most strikingly positively heliotropic. Marine copepods can be made positively heliotropic by the lowering of the temperature alone, or by a sudden increase in the concentration of the sea-water.英文原著 · 《Darwin and Modern Science》
A change of method, then, has given us General and Regional Anatomy. These, too, have been worked so thoroughly, that, if not exhausted, they have at least become to a great extent fixed and positive branches of knowledge. But the first of them, General Anatomy, would never, have reached this positive condition but for the introduction of that, instrument which I have mentioned as the second great aid to modern progress.英文原著 · 《Medical Essays》
"You are quite positive it is not your bag?" repeated the coroner once more. "I'm positive it is not mine," returned Miss Lloyd, without undue emphasis, but with an air of dismissing the subject. "Is your maid present?" asked the coroner. "Let her be summoned." Elsa came forward, the pretty, timid young girl, of German effects, whom I had already noticed. "Have you ever seen this bag before?" asked the coroner, holding it up before her. "Yes, sir." "When?" "This morning, sir. Lambert showed it to me, sir. He said he found it in Mr.英文原著 · 《The Gold Bag》
It is necessary that pure water should be used for the fixing, as the presence of any muriate damages the picture, and here arises another pleasing variation of the Chromatype. If the positive picture be placed in a very weak solution of common salt the image slowly fades out, leaving a faint negative outline. If it now be removed from the saline solution, dried, and again exposed to sunshine, a positive picture of a lilac color will be produced by a few minutes exposure. Several other of the chromates may be used in this process, but none is so successful as the chromate of copper.英文原著 · 《The History and Practice of the Art of Photography》