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She was not camouflaged, as were the hull and upperworks of many Navy vessels with which the four friends were familiar; but her dull coloring made her well nigh unobservable at a few miles' distance when she lay at rest. When she was in action no amount of deceiving paint would hide her, because of the water she disturbed. The motor boat Phil had suspected had more than an hour and half's start.
In zoology, for example, there is an immense number of uniformities ascertained, some of co-existence, others of succession, to many of which, notwithstanding considerable variations of the attendant circumstances, we know not any exception: but the antecedents, for the most part, are such as we can not artificially produce; or if we can, it is only by setting in motion the exact process by which nature produces them; and this being to us a mysterious process, of which the main circumstances are not only unknown but unobservable, we do not succeed in obtaining the antecedents under known circumstances.
Sixthly, If you take a Diaphanous Body, as for instance a Piece of Glass, and reduce it to Powder, the same Body, which when it was Entire, freely Transmitted the Beams of Light, acquiring by Contusion a multitude of Minute Surfaces, each of which is as it were a Little, but Imperfect Speculum, is qualify'd to Reflect in a Confus'd manner, so many either Beams, or Little and Singly Unobservable Images of the Lucid Body, that from a Diaphanous it Degenerates into a White Body.
This class includes whatever errors of generalisation are not mere blunders, but arise from some wrong general conception of the inductive process. Only a few kinds can be noted. 1. Under this Fallacy come generalisations which cannot be established by experience, e.g. inferences from the order in the Solar System to other and unknown parts of the universe; and also, except when a particular effect would contradict either the laws of number and extension, or the universal law of causality, all inferences from the fact that we have never known of a particular effect to its impossibility. 2. Those generalisations also are fallacious which resolve, either, as in early Greece, all things into one element, or, as often in modern times, impressions on the senses, differing in quality, and not merely in degree, into the same; e.g. heat, light, and (through vibrations) sensation, into motion; mental, into nervous states; and vital phenomena, into mechanical or chemical processes. In these theories, one fact has its laws applied to another. It may possibly be a condition of that other; but even then the mode in which the new fact is actually produced would have to be explained by its own law, and not by that of the condition. 3. Again, generalisations got by Simple Enumeration, fall under this Fallacy. That sort of Induction 'precariò concludit, says Bacon, 'et periculo exponitur ab instantiâ contradictoriâ, ... ex his tantummodò quæ præsto sunt pronuncians. The ancients used it; and in questions relating to man and society, it is still employed by practical men. By it men arrived at the various examples of the formula, Whatsoever has never been (e.g. a State without artificial distinctions of rank; negroes as civilised as the white race) will never be; which, being inductions without elimination, could at most form the ground only of the lowest empirical laws. Higher empirical laws can be got, when a phenomenon presents (as no negation can) a series of regular gradations, since something may then be inferred from the observed as to the unobservable terms of the series. Such is the law of man's necessary progression, in contradiction to the above formula. But even this better generalisation is similarly, though not as grossly, fallacious as the preceding, when, though not itself a cause, but only a summary expression for the general result of all the causes, it is accepted as the law of human changes, past and even future. So, empirical generalisations, from present to past time, and from the character of one nation to that of another, are similarly fallacious when employed as causal laws. 4. This Fallacy occurs, not only when an empirical is confounded with a causal law, but when causation is inferred improperly. The mistake sometimes lies in inferring
By keeping the small boats covered with a deck gun or by putting a boarding crew aboard, it was possible for the commanders of the submarines to keep their periscopes or the hulls of their vessels behind the sails of the fishing boats, unobservable to lookouts on larger ships.
The breeze continuing without interruption, on the 29th we came in sight of the island of Grand Cayman. It is a small speck in the middle of the sea, lying so near the level of the water as to be unobservable at any considerable distance.
As to the fort, it had entirely disappeared, its particles having been instantaneously removed to a great distance in every direction, falling over such a vast expanse of land and water that their descent was unobservable. In the place where the fortress had stood there was a wide tract of bare earth, which looked as if it had been scraped into a staring dead level of gravel and clay.
I count little of the many things I see pass at broad noonday, in large and open streets; Nature is shy, and hates to act before spectators; but in such an unobservable corner you sometimes see a single short scene of hers worth all the sentiments of a dozen French plays compounded together; and yet they are ABSOLUTELY fine, and whenever I have a more brilliant affair upon my hands than common, as they suit a preacher just as well as a hero, I generally make my sermon out of them, and for the text, "Cappadocia, Pontus and Asia, Phrygia and Pamphilia," is as good as anyone in the Bible.
In zoology, for example, there is an immense number of uniformities ascertained, some of coexistence, others of succession, to many of which, notwithstanding considerable variations of the attendant circumstances, we know not any exception: but the antecedents, for the most part, are such as we cannot artificially produce; or if we can, it is only by setting in motion the exact process by which nature produces them; and this being to us a mysterious process, of which the main circumstances are not only unknown but unobservable, the name of experimentation would here be completely misapplied.
Such is our work. It may seem very hopeless, and be mostly unobservable in surface results, but it is very real for all that. The conquering impulse, for which our task may have been to prepare the way, will be given, and then we shall wonder to see how surely the kingdom was coming, even when we observed it not.
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