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It was hardly a year since they had come to live at Tipton Grange with their uncle, a man nearly sixty, of acquiescent temper, miscellaneous opinions, and uncertain vote. He had travelled in his younger years, and was held in this part of the county to have contracted a too rambling habit of mind. Mr. Brooke's conclusions were as difficult to predict as the weather: it was only safe to say that he would act with benevolent intentions, and that he would spend as little money as possible in carrying them out. For the most glutinously indefinite minds enclose some hard grains of habit; and a man has been seen lax about all his own interests except the retention of his snuff-box, concerning which he was watchful, suspicious, and greedy of clutch.

Sometimes it is necessary to draw up a table which will show, without calculation, the weight of substance equivalent to a given volume of gas or of solution. The substance used for standardising should be, whenever possible, a pure sample of the substance to be determined--that is, for copper assays pure copper should be used, for iron assays pure iron, and so on; but when this cannot be got an impure substance may be used, provided it contains a known percentage of the metal, and that the impurities present are not such as will interfere with the accuracy of the assay. Including compounds with these, the standard may be calculated by multiplying the standard got in the usual way, by the percentage of metal in the compound or impure substance, and dividing by 100. If, for example, the standard 1.008 gram was obtained by using a sample of iron containing 99.7 per cent. of metal, the corrected standard would be 1.008×99.7/100 = 1.005. In volumetric analysis the change brought about must be one in which the end of the reaction is rendered prominent either by a change of colour or by the presence or absence of a precipitate. If the end of the reaction or finishing-point is not of itself visible, then it must be rendered visible by the use of a third reagent called an indicator.

In such a mood as that there is no sense of terror or despair at the quick-coming onset of death; no more dread of what may be than there is when the hamlet, with its little roofs and tall trees, is folded in the arms of the night, as the sunset dies behind the hill. Beauty may be a terrible thing, as in the sheeted cataract, with all its boiling eddies, or in the falling of the lightning from the womb of the cloud. There is desolation behind that, gigantic movement, ruthless force; but charm comes like a signal of security and good-will, and even its inevitable end is lit with something of mercy and quietness. The danger of charm is that it is the mother of sentiment; and the danger of sentiment is not that it is untrue, but that it takes from us the sense of proportion; we begin to be unable to do without our little scenes and sunsets; and the eye gets so used to dwelling upon the flower-strewn pleasaunce, with its screening trees, that it cannot bear to face the far horizon, with its menace of darkness and storm.

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