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Updated: May 14, 2025
In conclusion the lecturer stated that his principal object was to direct the attention of chemists, and especially of young chemists, to the question: Is there or is there not any evidence derived from the properties, the decompositions, or the relative stabilities of substances to warrant us in believing that two classes of compounds exist: one class in which there is interatomic connection alone, and another in which the connection is molecular?
But when we think of our power over this matter, that is to say, of our faculty of decomposing and recomposing it as we please, we project the whole of these possible decompositions and recompositions behind real extension in the form of a homogeneous space, empty and indifferent, which is supposed to underlie it.
As for total omissions and partial suppressions, they are without number.” M. Cousin is equally emphatic. “There are,” he says, “examples of every kind of alteration—alteration of words, alteration of phrases, suppressions, substitutions, additions, arbitrary compositions, and, what is worse, decompositions more arbitrary still.”
Again, substitute for the lump of gold some substance capable of entering into chemical relations with the water: say, a mass of that substance which is called "protein" the substance of flesh: a very considerable disturbance of equilibrium will take place all sorts of chemical compositions and decompositions will occur; but in the end, as before, the result will be the resumption of a condition of rest.
I selected justice as the subject-matter of my experiments. Finally, after a thousand decompositions, recompositions, and double compositions, I found at the bottom of my analytical crucible, not the criterion of certainty, but a metaphysico-economico-political treatise, whose conclusions were such that I did not care to present them in a more artistic or, if you will, more intelligible form.
The caverns of calcareous mountains are not exposed to those decompositions of the atmospheric air, unless they contain bones of quadrupeds, or the mould mixed with animal gluten and phosphate of lime, from which arise inflammable and fetid gases.
Now chloride of sodium when dissolved in water will turn litmus neither blue nor red; it is therefore neutral. Such simple, neutral, monobasic salts are mostly very stable. By "stable" we mean they possess considerable resistance to agencies, that, in the case of other salts, effect decompositions of those salts.
These masses are more than forty or fifty feet in diameter; and their form is so perfectly spherical, that, as they appear to touch the soil only by a small number of points, it might be supposed, at the least shock of an earthquake, they would roll into the abyss. I do not remember to have seen anywhere else a similar phenomenon, amid the decompositions of granitic soils.
A portion of the good done by rubbing an aching leg is no doubt accomplished by setting the nerve at work upon the sensations of pressure and of heat and so diverting it from that of pain, but another portion is probably due to the fact of motions producing changes, in the nature of mechanical and chemical decompositions, in the substance of the tissue; thus by a well known physiological law summoning a concentration of the nervous forces to the particular part.
I have kept this woman so far as personal acquaintance with her is concerned in the background of my history. For one thing, I am not fond of post-mortem examinations; in other words, I do not like searching the decompositions of moral carrion. Analysis of such is, like the use of reagents on dirt, at least unpleasant. Nor was any true end to be furthered by a more vivid presentation of her.
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