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So having carefully scanned the firmament of science for signs of the weather, I shall for once make a forecast for Darwinism, namely: Increasing cloudiness with heavy precipitations, indications of a violent storm, which threatens to cause the props of the structure to totter, and to sweep it from the scene.
What examples were made in this city of such precipitations within the memory of some living, when the Exchequer shutting up ruined the great bankers of Lombard Street. To what fell Sir Robert Viner the great Alderman Backwell the three brothers of the name of Forth, of whom King Charles II. made that severe pun, that 'Three-fourths of the city were broke?
And you'l easily believe, that in many changes of Colour, that happen upon the Dissolutions of Metalls, and Precipitations made with Oyl of Tartar, and the like Fix'd Salts, there may Intervene a Coalition of Saline Corpuscles with the Particles of the Body Dissolv'd or Precipitated, if you examine how much the Vitriol of a Metall may be Heavier than the Metalline part of it alone, upon the Score of the Saline parts Concoagulated therewith, and, that in Several Precipitations the weight of the Calx does for the same Reason much exceed that of the Metall, when it was first put in to be Dissolv'd.
A chemist may work with a few grains of a substance in a beaker, or test-tube, or crucible, and after several solutions, precipitations, fusions and dryings, may find by final weighing that he has not lost any appreciable amount, but how much is an appreciable amount?
For successful quantitative precipitations those substances are selected which are least soluble under conditions which can be easily established, and which separate from solution in such a state that they can be filtered readily and washed free from admixed material. In general, the substances selected are the same as those already familiar to the student of Qualitative Analysis.
"The precipitations are his." "Ah, well, at least you help him to fuse the constituents!... But now, be quite confidential to an old man who has experimented too. Is your husband really an amateur scientist, or is he a scientific amateur? Is it a pose or a taste? I fiddled once and wrote sonnets; one was a pose, the other a taste."
I practise political virtue: it embarrasses the world, it fogs them, it seems original, because so unnecessary. Mine is the scientific life. Experiment in old substances gives new well, say, new precipitations. But you are scientific, too. You have a laboratory, and have much to do with retorts." "No, you are thinking of my husband. The laboratory is his." "But the retorts are yours."
Having had considerable experience in the use of the alcoholic solutions of aniline dyes for staining bacteria, and having for some months used solutions in glycerine instead, I have come to much prefer the latter. Evaporation of the solvent is avoided, and in consequence a freedom from vexatious precipitations is secured, and more uniform and reliable results are obtained.
When, however, they did resolve to prosecute him, Defoe immediately turned round, and exulted in the prosecution, as the very thing which he had foreseen. "Was not the Review right when he said you ought to let such people run on till they were out of breath? Did I not note to you that precipitations have always ruined them and served us?... Not a hound in the pack opened like him.
I practise political virtue: it embarrasses the world, it fogs them, it seems original, because so unnecessary. Mine is the scientific life. Experiment in old substances gives new well, say, new precipitations. But you are scientific, too. You have a laboratory, and have much to do with retorts." "No, you are thinking of my husband. The laboratory is his." "But the retorts are yours."
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