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THREE:4. The value of handling machinery, or the saving it effects, is as the constancy with which it operates; such machinery may shorten the time of handling without cheapening the expense.

THREE:No word of commendation can be pronounced on the Epicurean psychology and logic. They are both bad in themselves, and inconsistent with the rest of the system. Were all knowledge derived from sense-impressions—especially if those impressions were what Epicurus imagined them to be—the atomic theory could never have been discovered or even conceived, nor could an ideal of happiness have been thought out. In its theory of human progress, Epicureanism once more shows to advantage; although in denying all inventiveness to man, and making him the passive recipient of external impressions, it differs widely from the modern school which it is commonly supposed to have anticipated. And we may reasonably suspect that, here as elsewhere, earlier systems embodied sounder views on the same subject.Cores expand when heated, and require an allowance in their dimensions the reverse from patterns; this is especially the case when the cores are made upon iron frames. For cylindrical cores less than six inches diameter, or less than two feet long, expansion need not be taken into account by pattern-makers, but for large cores careful calculation is required. The expansion of cores is as the amount of heat imparted to them, and the amount of heat taken up is dependent upon the quantity of metal that may surround the core and its conducting power.

THREE:An excellent plan to retain what is learned, is to make notes. There is nothing will assist the memory more in learning mechanics than to write down facts as they are learned, even if such memoranda are never referred to after they are made.

THREE:"Taken from you by some prowling nightbird as you lay unconscious. Which pocket did you place them in?"

THREE:"Got them," he croaked, "What do you think of this, my noble Countess?"A number of the men were taken to Germany, the others were kept as prisoners in the neighbourhood, and by and by had to suffer the shame of being74 compelled to work for the enemy. Amongst them were men who had never done any manual work, such as an aged notary public.